copyright 2003-2023 Homework.Study.com. The genes shows independent assortment. Why are food chains relatively short? d. Pathogens of plants and animals. |=1 | | | 5) Use the following figure to answer the question. Primary producers are a basic part of an ecosystem. C. primary consumers. All other trademarks and copyrights are the property of their respective owners. 16) Use the following figure to answer the question. 32) Owls eat rats, mice, shrews, and small birds. The four levels in this food chain are primary consumers, secondary consumers, tertiary consumers, and finally decomposers or phytoremediators. cultivation of soybeans Expert Answer. D) plant and animal biomass with economic value? Which of the following is most correct regarding non-limiting and limiting nutrients? Which one of the following is a defining characteristic of animals but not of plants? a. I. A) producers B) producers and decomposers C) producers, primary consumers, and decomposers D) producers, primary consumers, secondary consumers, and decomposers and more. C. carnivores at the botto; Which of the following trophic levels would contain the highest quantity of energy (kcal per m^2)? D) only II and III Producer. 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)? There is a maximum of three to four trophic levels in a food chain. (C) ones that use nitrogen-containing compounds as an electron acceptor. B) I and II ATLANTA (WANF) - A Georgia mother is warning other parents after her 10-year-old daughter's school bus driver allegedly entered the family's home without permission. Plantae B.) This fact is partially true considering their photosynthetic nature and low trophic level. (a) heterotrophs (b) autotrophs (c) chemoautotrophs (d) primary producers. 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.. 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 ecosystems would likely survive the longest after this hypothetical disaster? Whether you need help solving quadratic equations, inspiration for the upcoming science fair or the latest update on a major storm, Sciencing is here to help. Production increases correspond to periods of ice thickening increases in the fall, while there is still significant sunlight. In order to complete the food chain, they also offer food for primary consumers, secondary consumers, and apex predators (also known as tertiary consumers). This phytoplankton blooms under the ice, and as the ice level thins and reaches its yearly minimum, the ice algae production slows. III. increases in per capita fossil-fuel use Q. You discover a nucleated, unicellular organism that is photosynthetic but can also eat other organisms. Chapter 53 STUDY PLAY. When primary producers expend energy to build new tissue, this is ________. All the following are characteristics of at least some of bacteria except: a. may be photosynthetic b. may be heterotrophic c. may have a cell wall d. may be multicellular with a nucleus, Which of these protists is hypothesized to be ancestral to animals? c. Autotrophic. Eukaryotic, multicellular organisms such as mushrooms a. Animalia b. Bacteria c. Viruses d. Protista e. Fungi f. None of the above, Which of the following groups had the first multicellular members in the history of the Earth? D) D Which kingdom of eukarya consists primarily of unicellular organisms? A) only I and III 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. C) 4C Show your work. A) Fungi B) Protista C) Mammals D) Plants, Which of the following are eukaryotic, multicellular organisms that make their own food? 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. 13) Use the following figure to answer the question. C. ferns and hornworts. B) geography E) cyanobacteria. B) Canada land use changes C) region 39) Which statement best describes what ultimately happens to the chemical energy that is consumed but not used to produce new biomass in the process of energy transfer between trophic levels in an ecosystem? If the genes are present on the same chromosome, they undergo more than one crossing over in every meiosis. The following are primary producers, except: Producers are also called primary producers or autotrophs. Some chemical energy is not converted to new biomass as energy is transferred between trophic levels. C) symbiotic. The energy for this process can come from solar radiation, chemical reactions or from the heat in deep ocean . Which one of the following actions would increase the net primary productivity of the area the most? Which of the following is primarily responsible for limiting the number of trophic levels in most ecosystems? 12) Matter may be gained by, or lost from, ecosystems. Why does a vegetarian leave a smaller ecological footprint than a person who eats meat? Animals b. Deliver a strong employment brand message, and ensure effective relationships with both candidates and hiring managers. Transcribed image text: To recycle nutrients, the minimum an ecosystem must have is producers, primary consumers, secondary consumers, and decomposers. A) tropical wet forest Which of the following is not a kingdom in the Eucarya? All ecosystems are affected by wildfires equally. II. About half of all photosynthesis happens in the oceans. B) oceans C) I, II, and III Chemoautotrophic prokaryotes near deep-sea vents are primary producers. 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? 54) Why do logged tropical rain forest soils typically have nutrient-poor soils? Heat is emitted as infrared radiation, and some of it is retained in the atmosphere, decreasing 49) Which of the following statements is correct about biogeochemical cycling? C) typically 10 times higher in an uncut watershed Which of the following is not a primary producer? D) increases in irrigated agriculture, (C) increased processing of salt water to freshwater, Consider the global nitrogen cycle depicted in the accompanying figure. phosphorus. The improvement of which scientific tool produced significant advancements in the study. A Venus flytrap devouring an insect to obtain nitrogen functions as . In freshwater areas and shallow saltwater areas, producers include not only phytoplankton such as green algae, but also aquatic plants such as sea grasses and seaweed or larger rooted plants that grow on the surface of water such as cattails and provide not only food but also shelter for larger aquatic life. 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. Biology questions and answers. What nuclide will be formed when 86222Rn{ }_{86}^{222} \mathrm{Rn}86222Rn emits an alpha particle? 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. D) II, Using the accompanying figure, what is the predicted change in temperature under a model with continued very high emission of greenhouse gases? Which of the following is a consequence of biological magnification? However, some Protists, and all Fungi, Plants, and Animals are multicellular. C) increased processing of salt water to freshwater B) nitrogen lost to the atmosphere D) There are only so many organisms that are adapted to feed on other types of organisms. They do this through the process of photosynthesis. Detritus can be consumed by which of the following primary decomposers? A) photoautotrophs B) primary consumers C) decomposers D) chemoautotrophs E) top consumers. 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. Therefore, the color, textures, and curves of wood used in the product can be changed. Organisms at the top of the chain eventually die and are then consumed by decomposers, which fix the nitrogen levels and provide the organic material necessary for the next generation of primary producers. 63) The discipline that applies ecological principles to returning degraded ecosystems to a more natural state is known as, 64) Nitrifying bacteria participate in the nitrogen cycle mainly by. A) Rhizobium bacteria IV. The former crew members also claim they suffered anxiety and symptoms of post . 40) Consider the food chain of grass grasshopper mouse snake hawk. A freshwater pond has a specific ecosystem relevant to the pond setting, and is composed of various plants, aquatic animals and even bacteria. B) earlier migration returns of flycatchers Terms in this set (78) The process by which energy derived from solar radiation is used by certain organisms to form organic matter is called: photosynthesis. sediments and sedimentary rocks A) A Which of the following is most correct regarding the activity of detritivores? Primary consumers Producers 1 See answer Advertisement Advertisement thor12336 thor12336 Answer: Primary consumers is the correct answer, i did the flvs test :) . At these points, the ecosystems are interdependent. 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 ________. Which one of the following actions would increase the net primary productivity of the area the most? A) terrestrial ecosystems Trophic efficiency is ________. I. E) Energy transfer between trophic levels is usually less than 20 percent efficient. III. The number of trophic levels is typically limited to four or five. Fungi c. Plants d. Algae e. All of the above. potassium. D) II, In the accompanying figure, which of these countries has the highest per capita CO2 D) Zygomycota. D) nucleic acids from decomposing plants and animals Burning reduces available carbon for primary producers and, therefore, primary consumers. Viruses 4. 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? III. A) Many primary and higher-order consumers are opportunistic feeders. This is necessary to sustain life as the species' populations get smaller as you go further up the food chain. irrigation agriculture Primary producers are vital to the survival of an ecosystem. D) Germany 38) Which trophic level is most vulnerable to extinction? Group of answer choices. III. D) the changes in ocean temperatures as a result of increased global carbon emissions 33) Use the following figure to answer the question. Which of the following do plants and animals have in common? 3) To recycle nutrients, an ecosystem must have, at a minimum, ________. . In a food chain, there are no secondary producers. C) the sum of the changes in local precipitation and temperature patterns that result from global warming D) algae in lakes and streams, Considering the global carbon cycle, where are humans having a great impact? Which of the following is primarily responsible for this limitation? The melting of sea ice in the spring along with the increased availability of sunlight triggers algae production in the Arctic region. A) China In my new hybrid role, I am the sole producer of volleyball home events, in addition to co-producing both men's and women's basketball games. Since they are not mobile, they live and grow where there are nutrients to sustain them. primary productivity, in ecology, the rate at which energy is converted to organic substances by photosynthetic producers (photoautotrophs), which obtain energy and nutrients by harnessing sunlight, and chemosynthetic producers (chemoautotrophs), which obtain chemical energy through oxidation. Which of the following is not an autotroph? B) I and III only 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. 900 seconds. Which below is NOT a way mciosis increases genetic diversity? Primary producers are vital to the survival of an ecosystem. What could you do to eliminate error in your study as a result of this event? A. Archaea B. Eukarya C. Fungi D. Protists, The last common ancestor of all animals was probably a/n _____________________. Which of the following organisms are herbivores? Similarly to the ocean floor, sunlight does not reach deep into caves. A food chain represents the relationship between predator and prey. Someone who actively or passively invests in real estate is called a real estate . A) 7C Essential Duties and Responsibilities: Following is a summary of the essential functions . Chemoautotrophic prokaryotes near deep-sea vents are primary producers. 49. Kimberly Yavorski is a freelance writer with a passion for learning, especially about nature, outdoors and the natural sciences. A) Top-level predators are destined to have small populations that are sparsely distributed. A) One-way flow from producers to consumers to decomposers B) One-way flow from decomposers to consumers to producers C) Cyclic flow from. D) Obtaining a bachelor's degree. Which one of the reserves It is a way of classifying animals, plants, and fungi that eat other organisms in order to survive. They take nutrients from organic matter left in the soil by decomposers and transform them into food for themselves and other organisms. Advertisement Advertisement aless82 aless82 II. The availability of soil nutrients has a direct effect on primary productivity. B) only II (A) Energy is lost because most of the total energy consumed is used for cellular respiration rather than growth and reproduction. What is the reason for this seeming contradiction? Upon graduating with honors and working for several . 18) 4 . They form the basis of the food chain by creating food through photosynthesis or chemosynthesis. C) Seal meat probably contains the lowest concentrations of fat-soluble toxins. The place an organism attains in a food web is called its trophic level. label each plant/animal with one of the following labels: primary producer, primary consumer, secondary consumer or tertiary consumer. A) Toxic chemicals in the environment pose greater risk to top-level predators than to primary consumers. Bacteria 3. (b) Plants. Each new product is produced from different wood slabs. 3. (A) Top-level predators are destined to have small populations that are sparsely distributed. D) secrete enzymes that convert the organic molecules of detritus into carbon dioxide and water Question 1. - Producer - Moss - Grass - Mushroom, Prokaryotic organisms make up the.. a. Archaebacteria, Eubacteria, and Protists b. Archaebacteria and Protists c. Protists and Eubacteria d. Eubacteria and Archaebacteria. 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. Primary producers support the primary consumers in an ecosystem. a. Animalia b. Bacteria c. Viruses d. Protista e. Fungi, Eukaryotes that are not members of the plant, animal and fungi kingdoms are called a) decomposers b) protists c) microbes d) prokaryotes. B) Passing examination with 75% or higher score. 62) Which of these ecosystems has the lowest net primary production per square meter? What is the limiting portion of the cycle for plants? Question: It takes a great mass of primary producers to support a healthy ecosystem that includes tertiary consumers. The primary reason for this pattern is that. A) pesticide use Which of the following kingdoms contain members that are autotrophs? 42) Use the following figure to answer the question. D) both primary and secondary productivity, After looking at the experiment in the accompanying figure, what can be said about nutrient C) algal beds and reefs D) Eventually, the nutrients in soil organic matter are converted to inorganic form. c. They are both prokaryotic. 48) Which of the following locations are major reservoirs for carbon in the carbon cycle? All plants are primary producers since they make their own food (glucose). Primary consumers are those organisms which feeds on producers. After a rain, algae and lichens become photosynthetically active and (due to their ability to reproduce rapidly) provide a food source for higher-level organisms before the desert heat causes the water to evaporate. C) Basidiomycota. Which of the following factors account for the inefficiency of the rate of photosynthesis? A) tropical wet forest plus the ocean neritic zone Which of the following terms apply to plants rather than the Kingdom Fungi? What is the likely cause of this in freshwater ecosystems? At the other extreme, areas that are cold much of the time, such as the Arctic, are unable to support much plant life. A) typically 10 times lower in a clear-cut watershed The law of conservation of mass states that matter cannot be created, yet matter is sometimes gained or lost to an ecosystem. Which Kingdom consists of organisms that are major decomposers of the living world? E) acid precipitation in Europe, Which of the following are negative biological consequences of climate change? The remains of plants and animals that is consumed by detritivores is called ___. 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. d. Eukaryotic. e. They are both hydrophobic. a. Protista b. Plantae c. Bacteria d. All of the above are correct, Which of the following is a kingdom classification? chemosynthetic bacteria. mainly primary consumers are herbivores. Option (c): Secondary consumers are carnivores which feed on the primary consumers. E) Fish can potentially provide more food for humans than seal meat. Read a decomposer definition and learn about decomposers' role in the food chain, plus see examples of the types of decomposers. B) only II In general, the rate at which energy is stored by organisms through the formation of organic matter is called: primary productivity. He currently serves as the managing editor of HousingWire, the leading publication of housing and real estate news in . Explanation: Only primary consumers can function as a herbivores. Complete the following assignments for week 3. A) the changes in precipitation patterns that result from global warming 14) Use the following figure to answer the question. A. mosses and liverworts. (B) Populations of top-level predators are generally smaller than populations of primary consumers. Ice algae production in the accompanying figure, which of the above the product be. Per square meter following primary decomposers are multicellular 5 ) Use the following factors account for the inefficiency of following. Takes a great mass of primary consumers, and as the species ' populations get smaller as you go up. 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But can also eat other organisms, they undergo more which of the following are primary producers one crossing over in every meiosis toxins... They take nutrients from organic Matter left in the oceans concentrations of fat-soluble.... C. Bacteria d. all of the rate of photosynthesis are sparsely distributed by of...