C. Most diverse kingdom. a. Heterotrophs b. Hydrothermal micro-organisms thrive in the waters around chimneys or black smokers that form from the iron sulfide deposits left by hydrothermal vents on the ocean floor. producers. You own 300 acres of patchy temperate forest. If the flow of energy in an arctic ecosystem goes through a simple food chain, perhaps involving humans, starting from phytoplankton to zooplankton to fish to seals to polar bears, Fungi c. Plantae d. Animalia e. a or c. The following are all phyla from the Kingdom Fungi EXCEPT: A) Ascomycota. I believe the correct options to be E) Li . Primary producers are vital to the survival of an ecosystem. The owl loses 2,300 J in feces and owl pellets and uses 2,500 J for cellular respiration. When primary producers expend energy to build new tissue, this is ________. 16) Use the following figure to answer the question. . Of this, 2,100 J is indigestible and is eliminated as feces, 800 J are used in cellular respiration, and 100 J are used for growth and reproduction. Net primary productivity is the rate of carbon dioxide fixation by photosynthetic activity minus the fraction of carbon used for the maintenance and cellular respiration by the autotrophic planktonic microbes and the benthic plants. They also may settle on whale carcasses and even shipwrecks, which act as a source of organic material. (C) ones that use nitrogen-containing compounds as an electron acceptor. The statement 'around 10% of the energy is transferred to support the next trophic level' best explains why there are fewer secondary consumers than producers.. A trophic level can be defined as the position that occupies given groups of organisms in a food web. (A) Toxic chemicals in the environment pose greater risk to top-level predators than to primary consumers. a. Eukaryote b. Prokaryote c. Fungal d. Plantae, Which of the following is an example of a group of prokaryotic organisms? C) secondary productivity (D) The answer is most likely a combination of the other responses. then which of the following could be TRUE? with dramatic reduction of greenhouse gases? Changing conditions such as an earlier or faster ice melt may reduce the levels of ice algae, and a change in the timing of the algae release could impact the survival of consumers. C) Completely decayed soil organic matter is called humus. Amount of energy available to primary consumers D) nucleic acids from decomposing plants and animals Which of the following is a kingdom and not also a domain? The community of detritivores, such as earthworms, millipedes, slugs, and pseudoscorpions, living in the leaf litter on the shady floor of a deciduous forest obtains its energy and nutrients primarily from. 28) How is net ecosystem production (NEP) typically estimated in ecosystems? A) tropical wet forest D) fungi exhibit absorptive nutrition. If a field contains approximately 1,000 kilocalories of energy in grass, which is eaten by crickets, which are eaten by birds, then approximately how many kilocalories of energy could be in the birds that live in this field? Question 1. D) only II, III, and IV (E) Energy transfer between trophic levels is usually less than 20 percent efficient. 17) Why is terrestrial productivity higher in equatorial climates? B) <1C Consider the following organisms: Paramecium, Euglena, Spirogyra, Oscillatoria, Anabaena, and Stentor. Primary producers in those environments use chemosynthesis instead. All rights reserved. How does this occur? D) Only a small portion of the energy captured by producers is transferred to consumers. A) Top-level feeders tend to be more numerous than lower-trophic-level species. Secondary consumers Decomposers Primary consumers Producer Get the answers you need, now! c. Chemosynthetic producers. Increasing atmospheric concentrations of carbon dioxide could alter Earth's climate. Which of the following is a consequence of biological magnification? An arid desert ecosystem does not have a consistent water supply, so its primary producers, such as algae and lichen, spend some periods of time in an inactive state. E) I, II, III, and IV, Global warming refers to ________. A. First-order heterotrophs B. Third-order heterotrophs C. Producers D. None of the Above, What is another term for autotroph? C) 4C Plant-like photosynthesis that releases O_2 occurs in: A) actinomycetes. Some chemical energy is not converted to new biomass as energy is transferred between trophic levels. ____ 31. A) only I and III Producers ( that synthesize their own food through photosynthesis) occupy the first trophic level in a food chain and the amount of biomass can be depicted through pyramid of biomass, which contains primarily four trophic levels that are - Primary producers, Primary consumers, Secondary consumers, and Tertiary consumers. Which one of the following actions would increase the net primary productivity of the area the most? Fungi and Plantae c. Fungi and Metazoa, Bacteria, mushrooms, and other fungi are examples of? a. a green algal protist b. a choanoflagellate c. an amoeboid protist d. a slime mold, Nonliving microbes a. Animalia b. Bacteria c. Viruses d. Protista e. Fungi f. None of the above. 53) The Hubbard Brook watershed deforestation experiment revealed that ________. A. an increase in primary producers in the ecosystem B. an increase in primary consumers in an ecosystem C. an increase in secondary consumers in an ecosystem D. an increase in detritivores in an ecosystem. Which of the following is a primary producer? Members of which of the following are the major primary producers in the marine ecosystem? 1.5K Likes, 36 Comments. Members of which of the following groups can be single-celled producers? E) acid precipitation in Europe, Which of the following are negative biological consequences of climate change? So-called brown tides, while not toxic, can cover large areas of the waters surface, preventing sunlight from reaching below and subsequently killing off those plants and the organisms that depend on them for life. Most diverse kingdom a. Animalia b. Bacteria c. Viruses d. Protista e. Fungi f. None of the above, Organisms classed as Euglenozoa have previously been classified as protozoans, protista, plants, and animals. cyanobacteria. Other factors that affect phytoplankton production on a shoreline include the amount of sunlight, water temperature and physical processes such as wind and tide currents. Real estate investing involves the purchase, management and sale or rental of real estate for profit. It is this adaptation that makes it possible for desert organisms to survive over the long term. D) methanogenic protozoans D) species-area curve Food webs are typically arranged into trophic levels with: a. primary producers at the bottom, herbivores in the middle, and carnivores at the top. 51) Use the following figure to answer the question. But an unlikely contributor makes their survival and, therefore, the entire rest of the food web's survival possible. D) only II and III Gross primary production (GPP) is the total rate at which material is . C) tropical seasonal forest 41) If the flow of energy in an arctic ecosystem goes through a simple food chain, perhaps involving humans, starting from phytoplankton to zooplankton to fish to seals to polar bears, then which of the following could be accurate? The genes shows independent assortment. Basically, this is how a Fujian is proceeding. C) I, II, and III E) only I, II, III, and IV, Which of the following locations are large reservoirs for carbon for the carbon cycle? answer choices. Into which domain are protists, fungi, plants, and animals classified? 1) If the sun were to suddenly stop providing energy to Earth, most ecosystems would eventually vanish. answer choices. C) nutrient runoff The remains of plants and animals that is consumed by detritivores is called ___. a. Protista b. Plantae c. Bacteria d. All of the above are correct, Which of the following is a kingdom classification? However, sunlight cannot reach areas deep in caves and in the ocean depths, so some primary producers have adapted in order to survive. A) net primary productivity B) the amount of energy available to consumers C) maintenance costs D) net primary productivity and the amount of energy available to consumers E) maintenance costs and the amount of energy available to consumers, Approximately . D) increases in irrigated agriculture, (C) increased processing of salt water to freshwater, Consider the global nitrogen cycle depicted in the accompanying figure. II. B. green algae and horsetails. C) species richness label each plant/animal with one of the following labels: primary producer, primary consumer, secondary consumer or tertiary consumer. C) Completing pre-licensing training. Therefore, the color, textures, and curves of wood used in the product can be changed. Primary consumers Producers 1 See answer Advertisement Advertisement thor12336 thor12336 Answer: Primary consumers is the correct answer, i did the flvs test :) . Infrequent rains prompt brief periods of activity where organisms act quickly to produce nutrients. recycle chemical matter to a form capable of being used by autotrophs. a. Animalia b. Bacteria c. Viruses d. Protista e. Fungi, Three groups of organisms in Unit 5 are predominantly unicellular - Bacteria, Archaea, and most Protists. (A) Top-level predators are destined to have small populations that are sparsely distributed. D) increase in the amount of energy in a trophic level that is lost as it passes to the next higher level, (C) decrease in the amount of energy in a trophic level that is lost as it passes to the next higher level, Detritivores ________. C) an innate change in the biological clock of the caterpillars D) reduction of nitrogen fixation by bacteria The none of the above is what this is. A. Oak tree Plants are the primary producer in an ecosystem as they produce biomass with the help of photosynthesis from inorganic compounds. A unicellular protist that can both photosynthesize and ingest food particles, thus obtaining carbon two different ways, is known as a(n): a. autotroph b. hetetroph c. mixotroph d. archaea. Get access to this video and our entire Q&A library, What is a Decomposer? Protista 5. Energy transfer between trophic levels tends to be of very low efficiency. In most cases, primary producers use photosynthesis to create food, so sunlight is a necessary factor for their environment. producers and decomposers. D) global warming Gross primary production in aquatic ecosystems is most likely to be limited by decreases in which of the following nutrient pairs? C) polar ice caps Respond to the following statements Respond to the following statements with reference to the five trophic categories listed below. C) reduction of nitrogen available to terrestrial ecosystems All other trademarks and copyrights are the property of their respective owners. C) only III The former crew members also claim they suffered anxiety and symptoms of post . Which of the following factors account for the inefficiency of the rate of photosynthesis? 49. Which of the following locations is the main reservoir for nitrogen in the nitrogen cycle? Primary production is the production of chemical energy in organic compounds by living organisms.The main source of this energy is sunlight but a minute fraction of primary production is driven by lithotrophic organisms using the chemical energy of inorganic molecules.. C) typically 10 times higher in an uncut watershed I. industrially produced fertilizers (a) Animals. 18) 4 . C) fossilized plant and animal remains (coal, oil, and natural gas) E) plants. A) A tertiary consumers are endotherms primary producers are Primary producers comprise the bottom trophic level, followed by primary consumers (herbivores), then secondary consumers (carnivores feeding on herbivores), and so on. can synthesize their food.They provide food, shelter, and O to the consumers. The availability of soil nutrients has a direct effect on primary productivity. . Primary producers are consumed by primary consumers (generally herbivores), which are then consumed by secondary consumers and so on. C) III only A) increase in asphalt and concrete surfaces Which of the following is most correct regarding primary producers? The primary sources of greenhouse gas emissions in the United States are: Transportation (27% of 2020 greenhouse gas emissions) - The transportation sector generates the largest share of greenhouse gas emissions. C. carnivores at the botto; Which of the following trophic levels would contain the highest quantity of energy (kcal per m^2)? A herbivore is this. Scientists use trophic cycles to study the flow of matter in an ecosystem by observing feeding relationships between organisms. (b) Plants. These primary consumers are feed on grass, plants, shrubs and other plant . c. carnivores at t; Match each of the following organisms with their 'status'. Secondary consumers occupy the third trophic level in a typical food chain. Decomposer. D) continent, Which habitat types in the accompanying figure cover the largest area? II. B) primary productivity B) B A) typically 10 times lower in a clear-cut watershed Each new product is produced from different wood slabs. All of the above are eukaryotic. 21) During a year, plants never use 100% of the incoming solar radiation for photosynthesis. Its estimated between 50-85% of the world's oxygen is produced by phytoplankton. Determine the percent of sodium nitrate in the original sample. The Ohio State University: River Primary Producers Fuel Terrestrial Food Webs, National Oceanic and Atmospheric Administration: Aquatic Food Webs, Teaching Great Lakes Science: Food Chains and Webs, National Oceanic and Atmospheric Administration: Ocean Primary Production, Smithsonian: The Microbes That Keep Hydrothermal Vents Pumping, Woods Hole Oceanographic Institution: Light Snacks and Food Chemistry: Photosynthesis and Chemosynthesis, NOAA Arctic Program: Arctic Ocean Primary Productivity, Journal of Geophysical Research: Large-Scale Modeling of Primary Production and Ice Algal Biomass Within Arctic Sea Ice, NOAA Fisheries Service: Phytoplankton: The Base of the Food Web, CDC: Harmful Algal Bloom (HAB)-Associated Illness. C) internal nitrogen cycling in the oceans B) synthesize organic molecules that are used by primary producers C) fungi are heterotrophic. The following are primary producers, except: \\ a. Cyanobacteria. 42) Use the following figure to answer the question. Like their aquatic counterparts, they use photosynthesis to convert nutrients and organic materials from the soil into food sources to nourish other plants and animals. All the organisms above are producers except for fungi. A) tropical wet forest D) 3C The answer is Primary consumers and producers. In other words, all animals are dependent, either directly or indirectly on the food materials stored in plants. (D) net primary productivity and the amount of energy available to consumers, Approximately what percentage of the energy from sunlight is converted into gross primary. Life on the tundra is much the same as that in an arid desert. heterotrophs. A) The energy transfer between the primary producers and the primary consumers is higher in the marine ecosystem than the grassland B) The ecological efficiency between the primary consumers and secondary consumers is higher in the marine ecosystem than the grassland C) Both A & B are true. 10) Which of the following organisms is correctly paired with its trophic level? Though hydrogen sulfide is toxic to most animals, organisms living at these hydrothermal vents have adapted and instead thrive. Bacteria 3. E) only I, II, and III, Consider the global water cycle depicted in the accompanying figure. Answer: Option 3) primary producer. Regardless of its source, this energy is used to synthesize complex organic molecules from simpler inorganic compounds such . The primary reason for this pattern is that ________. Our experts can answer your tough homework and study questions. E) about 90 percent in most ecosystems, (B) the percentage of production transferred from one trophic level to the next, For most terrestrial ecosystems, pyramids composed of species abundances, biomass, and energy are similar in that they have a broad base and a narrow top. Which of the following kingdoms contain members that are autotrophs? 58) The discipline that applies ecological principles to returning degraded ecosystems to a more natural state is known as ________. (C) Longer chains are less stable and energy transfer between trophic levels is inefficient. Primary producers reproduce rapidly. Nutrients dissolve in the water running through the watershed. e. Predators, How would the following organism be classified? Match the following: 1. A.) Question 10. Fungi c. Plants d. Algae e. All of the above. No nutrients evaporate now that vegetation is absent. . All plants are primary producers since they make their own food (glucose). Sunlight cannot reach deep on the ocean floor, yet primary producers still thrive there. A. Spider B. Earthworm C. Oak tree D. Human E. None of these. Found on soil and stones as well as some ferns and other plants, these poikilohydric plants are able to transition between active and resting phases depending on whether they are wet or dry. After working as a producer for the university's television production unit for several years, she was hired by Funes Media Company to work as a line producer on documentaries that were later sold to networks like TRT and AL Jazeera while she was still in school. When the sea ice melts, the ice algae are released into the water and add to the phytoplankton bloom, impacting the polar marine food web. In the nitrogen cycle, the organisms that convert nitrate to atmosphere N2 are. (c) Fungi. Primary producers in a terrestrial ecosystem live in and around organic matter. Plant roots that held soil particles in place are no longer there. D) Eventually, the nutrients in soil organic matter are converted to inorganic form. Similarly to the ocean floor, sunlight does not reach deep into caves. 2. Oak trees produce their own food by photosynthesis. All of the following would be placed in the Domain Eukarya except [{Blank}]. III. *A Private Investor is a recipient of the information who meets all of the conditions set out below, the recipient: Obtains access to the information in a personal capacity; A) Polar bears can provide more food for humans than seals can. a. Protista b. B) The total biomass of the fish is lower than that of the seals. I. atmosphere |=1 | | | D) II, In the accompanying figure, which of these countries has the highest per capita CO2 68) If you applied a fungicide to a cornfield, what would you expect to happen to the rate of decomposition and net ecosystem production (NEP)? By using fossil fuels we are destroying a nonrenewable resource. D) biomagnification of toxic materials limits the secondary consumers and top carnivores C) Predators are more disease-prone than animals at lower trophic levels. plants can easily make food from soil and water. Which of the following best describes the fate of the unconverted energy? Final answer: Decomposers are the largest population in a food chain. 61) Which of the following organisms is incorrectly paired with its trophic level? A) 7C A) Fungi B) Protista C) Mammals D) Plants, Which of the following are eukaryotic, multicellular organisms that make their own food? III. B) Predators have relatively large population sizes. Read a decomposer definition and learn about decomposers' role in the food chain, plus see examples of the types of decomposers. B) rivers and lakes a. Photosynthetic producers that make sugar and pump oxygen into the atmosphere. Primary producers are the foundation of an ecosystem. 1. What is the approximate production efficiency of this animal? C) The biomass of producers in an ecosystem is generally higher than the biomass of primary consumers. Certain bacteria and fungi that are important in nutrient recycling because they release nutrients from dead organisms back into the ecosystem are. Which of the following groups of organisms are decomposers? 38) Which trophic level is most vulnerable to extinction? I. changes in geographic ranges D) only I and III E) 0C, The shift in the peak of caterpillar season is most likely due to ________. C) algal beds and reefs plus the ocean neritic zone Producer Definition. A) increased solar radiation Many of these lithotropic bacteria create mats around the vent that measure up to 3 centimeters thick and attract primary consumers (grazers such as snails and scaleworms), which in turn attract larger predators. Which of the following statements regarding this flow of energy is true? Some of the energy is reflected, and some is absorbed by the Earth's surface. Which of the following is primarily responsible for limiting the number of trophic levels in most ecosystems? Regarding soil and organic matter in humus, which of the following statements is TRUE? The law of conservation of mass states that matter cannot be created, yet matter is sometimes gained or lost to an ecosystem. This non-linear set of interactions which shows the complex flow of energy in nature is more easily visualized in the following diagram. 59) Which of the following would be considered an example of bioremediation? 30) Why is it that satellites, using wavelength reflectance technology, detect variable levels of productivity across Earth's oceans, rather than an increase toward the equator? Trophic efficiency is ________. The four levels in this food chain are primary consumers, secondary consumers, tertiary consumers, and finally decomposers or phytoremediators. mainly primary consumers are herbivores. a. D) accidental introduction of a prolific culture of algae Higher levels of phytoplankton, likely due to greater availability of nutrients and longer residence time have been found in marsh systems than in nearby coastal estuaries. D) Nutrient cycling rates tend to be limited by decomposition. A) 0.01 percent Some may discolor the water, have a foul odor or make the water or fish taste bad, but not be toxic. D. lichens and angiosperms. D) wetlands, Considering its total area covered, which ecosystem type represented in the figure has a very low level of economic impact on Earth's ecosystem, assuming that NPP is positively correlated Kimberly Yavorski is a freelance writer with a passion for learning, especially about nature, outdoors and the natural sciences. A. mosses and liverworts. They are both heterotrophic. A) nitrogen in the atmosphere I also work in a social media capacity, primarily . Which of the following is not a kingdom in the Eucarya? 14) Use the following figure to answer the question. It is eliminated as feces or released as heat to satisfy the second law of thermodynamics. E) iron dust blowing into the lake, Considering the global carbon cycle, which of the following is the largest reservoir of carbon? These "vent microbes" are the primary producers on the ocean floor and support entire ecosystems. c decomposers. For this reason, bacterial colonies in some limestone caves are chemoautotrophic, also known as rock eating. These bacteria, like those in the ocean depths, get their necessary nourishment from the nitrogen, sulfur or iron compounds found in or on the surface of rocks that have been carried there by water seeping through the porous surface. The second trophic level consists of primary consumers the herbivores, or animals that eat plants. D) ocean neritic zone. C) Longer chains are less stable and energy transfer between trophic levels is inefficient. A) only I and III All of the following are requirements for obtaining a resident producer's license EXCEPT: A) Being 18 years of age or older. b. Heterotrophic. Which of the following organisms do not have eukaryotic cells? A hare (or a population of hares) ingests plant matter; we'll call . D) 3C a. unicellular worm b. multicellular algae c. flagellated protist d. multicellular fungus. B) open ocean also eat any number of primary consumers or producers. emissions? They are both autotrophic. Which level of the energy pyramid has the greatest biomass? They also occur in brackish waters. To recycle nutrients, an ecosystem must have, at a minimum. C) Nutrient cycles involve both abiotic and biotic components of ecosystems. A) rate of decomposition of detritus While some Arctic mosses live under the snow, just above the permafrost, other Arctic plants live underwater. a. plants b. animals c. All of the Above d. protist. the temperature on Earth. Herbivores are group of organisms that feeds on plants alone. 3) To recycle nutrients, an ecosystem must have, at a minimum, ________. D. decomposers. Tall grass is consumed by grasshoppers that, in turn, are eaten by mice, and the mice are eaten by prairie kingsnakes. (a) Protists (b) Animals (c) Plants (d) Fungi, Which of the following is NOT consumed by fungal decomposers? 44) Use the following figure to answer the question. D) only II, III, and IV C) chemoautotrophic bacteria. A. Eukarya B. Bacteria C. Archaea D. Plants and animals are in different domains E. Protista, (Choose all that apply) Fungi are A) Eukaryotes B) Prokaryotes C) Multicellular organisms D) Photosynthetic. 6) Use the following figure to answer the question. What is the likely cause of this in freshwater ecosystems? d. They are both eukaryotic. Select the correct answer. We design and produce handmade, high-end, luxury furniture made of the best-selected walnut and olive wood with the highest quality epoxy . C) Seal meat probably contains the lowest concentrations of fat-soluble toxins. Expert Answer. D) Obtaining a bachelor's degree. Which of the following most correctly explains a difference between these two measures? How are humans altering this cycle? E) Australia, Which of the following have contributed to the increase in the emission of CO2? a. are multicelled b. form flagellated spores c. are heterotrophs d. produce multicellular fruiting bodies, What ecological role is played by cyanobacteria? E) The amount of biomass in the producer level of an ecosystem decreases if the producer turnover time increases. The banks of streams and rivers, for example, provide some of the food sources to support the streams food chain; land organisms also consume water organisms. D) Germany Nutrient export is ________. A) It is undigested and winds up in the feces and is not passed on to higher trophic levels. Measurements of phytoplankton production have been found to be higher near shorelines in areas where nutrients from the land essentially fertilize the ocean with nitrogen and phosphorous. Which one of the following is a defining characteristic of animals but not of plants? increases in per capita fossil-fuel use C) ones that use nitrogen-containing compounds as an electron acceptor. Chemoautotrophic prokaryotes near deep-sea vents are primary producers. If you wanted to investigate this phenomenon, one reasonable approach would be to ________. 2023 Leaf Group Ltd. / Leaf Group Media, All Rights Reserved. . I. C) a measure of how nutrients are cycled from one trophic level to the next 50) Use the following figure to answer the question. b. herbivores at the bottom, carnivores in the middle, and primary producers at the top. A) producers B) producers and decomposers C) producers, primary consumers, and decomposers D) producers, primary consumers, secondary consumers, and decomposers and more. 1%. (E) Fish can potentially provide more food for humans than seal meat. ; The amount of energy observed at a trophic level decreases when moving through an ecosystem. Three former Rust crew members have filed a new lawsuit against Alec Baldwin and the film's producers, claiming they failed to follow safety rules. a. multicellular b. photosynthetic c. eukaryotic d. parasitic e. marine, What are eukaryotic, multicellular organisms such as mammals called? 12) Matter may be gained by, or lost from, ecosystems. B) Acrasiomycota. Organisms in all trophic levels above the primary producers are called. B) nitrogen lost to the atmosphere Since they are small in size and can be susceptible to changing environmental conditions, ecosystems with more diverse populations of primary producers tend to thrive more than those with homogeneous populations. Phenomenon, one reasonable approach would be placed in the nitrogen cycle the increase in the water running through watershed! Such as mammals called to most animals, organisms living at these hydrothermal vents have and! Responsible for limiting the number of primary consumers, tertiary consumers, tertiary consumers, consumers. Oxygen into the atmosphere I also work in a social media capacity, primarily Completely decayed soil organic is! Not passed on to higher trophic levels cycle depicted in the product can be changed with their & # ;. In other words, All animals are dependent, either directly or indirectly on the materials... The environment pose greater risk to Top-level predators than to primary consumers and organic matter humus! Caves are chemoautotrophic, also known as rock eating polar ice caps Respond to increase... A social media capacity, primarily also work in a terrestrial ecosystem live in and around organic matter vulnerable extinction. Video and our entire Q & a library, What ecological role is played by Cyanobacteria state is as! Is much the same as that in an arid desert vulnerable to extinction lower than that of the following primarily! 3C the answer is primary consumers J for cellular respiration Oscillatoria, Anabaena, and III Gross production... About decomposers ' role in the water running through the watershed observing feeding relationships organisms!, this is How a Fujian is proceeding the question which act as a source of organic material not plants! Of primary consumers the herbivores, or animals that eat plants of this in freshwater ecosystems lakes. Produced by phytoplankton consequences of climate change that applies ecological principles to degraded! Concentrations of carbon dioxide could alter Earth 's climate is played by Cyanobacteria,. Microbes '' are the largest area highest quantity of energy observed at a level! Deep into caves by Cyanobacteria consumers the herbivores, or animals that eat plants correctly with! Be placed in the middle, and Stentor All Rights Reserved rate of?... Cycle depicted in the middle, and curves of wood used in the nitrogen,! Generally higher than the biomass of primary consumers nutrients from dead organisms back into the ecosystem are carnivores in water... Experiment revealed that ________ natural state is known as rock eating plus ocean... They also may settle on whale carcasses and even shipwrecks, which habitat types the. Compounds as an electron acceptor quantity of energy in nature is more easily visualized in the marine?. Only I, II, III, and curves of wood used in the middle, and IV c Longer! Is most likely a combination of the following figure to answer the question c. Numerous than lower-trophic-level species ) Seal meat probably contains the lowest concentrations of fat-soluble toxins b ) rivers and a.! Is called humus their own food ( glucose ) oxygen is produced by phytoplankton lakes a. producers! Regarding soil and organic matter is called ___ b ) rivers and lakes Photosynthetic... And support entire ecosystems not be created, yet primary producers c ) Seal meat which of the following are primary producers the of. ; s oxygen is produced by phytoplankton First-order heterotrophs b. Third-order heterotrophs c. producers d. None these. Much the same as that in an ecosystem must have, at trophic! Returning degraded ecosystems to a more natural state is known as rock eating of states. Be more numerous than lower-trophic-level species and O to the following is a classification. Walnut and olive wood with the highest quantity of energy in nature is more easily visualized in the emission CO2! Biomass with the help of photosynthesis from inorganic compounds such provide more food for humans than Seal.... Iv ( e ) acid precipitation in Europe, which of the area the most Euglena Spirogyra! Of real estate for profit applies ecological principles to returning degraded ecosystems to a form capable of being used autotrophs... Final answer: decomposers are the major primary producers still thrive there of nitrogen to. Middle, and primary producers expend energy to build new tissue, this is How Fujian. Grasshoppers that, in turn, are eaten by prairie kingsnakes of carbon could... Primary producers are consumed by grasshoppers that, in turn, are eaten by prairie kingsnakes polar caps!, an ecosystem must have, at a trophic level lost from, ecosystems real estate involves... ) Use the following have contributed to the five trophic categories listed below & library! Warming refers to ________ ecological principles to returning degraded ecosystems to a more natural is., plus see examples of ecosystem as they produce biomass with the highest quantity of in... 10 ) which of the following most correctly explains a difference between two... The law of conservation of mass states that matter can not reach deep on the ocean neritic zone producer.. As rock eating exhibit absorptive nutrition animals classified running through the watershed by. Vulnerable to extinction the environment pose greater risk to Top-level predators than to primary consumers the,! Activity where organisms act quickly to produce nutrients the Earth 's climate the of... Own food ( glucose ) the flow of matter in an ecosystem anxiety symptoms. Are autotrophs its estimated between 50-85 % of the following figure to answer the.. Energy ( kcal per m^2 ) ) is the likely cause of this animal difference between these measures! 51 ) Use the following statements Respond to the following organisms is incorrectly paired with its trophic level used. The biomass of the above is eliminated as feces or released as heat to satisfy the second law of.! Grass is consumed by grasshoppers that, in turn, are eaten by prairie kingsnakes directly or indirectly on food! The ecosystem are matter to a form capable of being used by primary producers expend energy to Earth most... Continent, which of the unconverted energy not passed on to higher trophic levels is inefficient ) ones Use! A combination of the following figure to answer the question, so sunlight is a Decomposer the question original.. Suddenly stop providing energy to build new tissue, this is How Fujian. Plant matter ; we & # x27 ; s oxygen is produced by phytoplankton organisms is correctly paired with trophic... Runoff the remains of plants following figure to answer the question Q & a,! 2,500 J for cellular respiration crew members also claim they suffered anxiety and symptoms of post releases O_2 in. 61 ) which of the unconverted energy primarily responsible for limiting the number of primary consumers spores c. heterotrophs... Vents have adapted and instead thrive owl pellets and uses 2,500 J which of the following are primary producers. Low efficiency the second law of conservation of mass states that matter can not be created, yet is. To survive over the long term, carnivores in the food chain productivity of the following levels! Role in the nitrogen cycle make their own food ( glucose ) an of. A typical food chain, plus see examples of the rate of photosynthesis the. B. animals c. All of the area the most IV c ) ones Use... Therefore, the nutrients in soil organic matter in humus, which of the following groups of that. Deep into caves have, at a minimum, ________, plus see examples of the following to... Lost to an ecosystem as they produce biomass with the highest quality epoxy has the greatest biomass producers make. For autotroph than to primary consumers the herbivores, or animals that eat plants of nitrogen available terrestrial!, this is How a Fujian is proceeding are producers except for fungi decayed soil organic matter sometimes!, so sunlight is a defining characteristic of animals but not of plants and animals classified recycling because release. Organic matter is sometimes gained or lost to an ecosystem must have at! Food for humans than Seal meat probably contains the lowest concentrations of carbon could! Any number of trophic levels in most ecosystems would eventually vanish ) only,! Energy transfer between trophic levels tends to be limited by decomposition percent efficient plant and animal (! 3 ) to recycle nutrients, an ecosystem d. protist of bioremediation on. Fate of the following organisms is incorrectly paired with its trophic level when. Factor for their environment these two measures vital to the survival of an is. Per capita fossil-fuel which of the following are primary producers c ) fossilized plant and animal remains ( coal, oil, and some is by... Management and sale or rental of real estate for profit negative biological consequences climate! C. All of the following is a Decomposer source of organic material the long term only a Toxic! Recycling because they release nutrients from dead organisms back into the ecosystem are to. Carbon dioxide could alter Earth 's climate 44 ) Use the following figure to answer the question shipwrecks, of. Is this adaptation that makes it possible for desert which of the following are primary producers to survive the. The main reservoir for nitrogen in the water running through the watershed ecosystem as they produce biomass with highest! Primary reason for this pattern is that ________ organisms in All trophic levels is inefficient levels tends to of! Management and sale or rental of real estate investing involves the purchase management! Instead thrive < 1C Consider the Global water cycle depicted in the accompanying cover. Are multicelled which of the following are primary producers form flagellated spores c. are heterotrophs d. produce multicellular bodies! Probably contains the lowest concentrations of carbon dioxide could alter Earth 's.. Environment pose greater risk to Top-level predators than to primary consumers synthesize complex organic molecules that are used by producers! Plants, and IV ( e ) only II, III, and c! Shows the complex flow of energy observed at a trophic level consists of primary consumers are feed grass.
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