In an energy pyramid, which group of organisms contains the greatest amount of available energy?

Which process describes how carbon moves from the atmosphere into the bodies of living organisms in an ecosystem?

Which of the following describes the primary role of decomposers, such as fungi and bacteria, in an ecosystem?

Only about 10% of the energy at one trophic level is passed on to the next level. What happens to the other 90% of the energy?

In a food web, if a population of predators is removed, what is most likely to happen to the population of the organisms they used to eat?

Which of the following best describes the law of conservation of mass in an ecosystem?

Which of the following describes the 'Law of Conservation of Matter' within an ecosystem?

Which of the following describes the fundamental difference between how energy and matter move through an ecosystem?

Which of the following is the primary source of energy for nearly all life on Earth and drives the flow of energy through ecosystems?

In an ecosystem, which process is primarily responsible for converting solar energy into chemical energy stored in glucose?

In a typical energy pyramid, why is there significantly less energy available at the top level (apex predators) compared to the bottom level (producers)?

Which of the following describes the role of decomposers, such as bacteria and fungi, in the cycling of matter within an ecosystem?

Which of the following describes the movement of matter and energy through an ecosystem?

In a food web, if the population of primary consumers (herbivores) suddenly decreases, what is the most likely immediate effect on the producers?

Which of the following describes the role of the Sun in an ecosystem's energy cycle?

Which of the following describes the relationship between the reactants and products of photosynthesis and cellular respiration?

Which of the following is an example of matter being recycled from the biotic (living) part of an ecosystem back to the abiotic (non-living) part?

In a food web, where does the energy used by producers originally come from?

Which of the following describes the role of a decomposer in an ecosystem?

Only about 10% of the energy at one trophic level is passed on to the next level. What happens to most of the remaining 90% of the energy?

Which of the following describes how matter and energy move through an ecosystem differently?

In an energy pyramid, which trophic level contains the most available energy?

Which of the following describes the consumer that eats only plants to obtain its matter and energy?

Which of the following describes what happens to the atoms that make up a piece of wood when it is eaten by an organism or decays in the soil?

Which of the following describes the process of cellular respiration, which occurs in both plants and animals?

In a forest ecosystem, which process allows plants to convert radiant energy from the sun into chemical energy stored in glucose?

In an energy pyramid, why is there significantly less energy available at the top level (tertiary consumers) compared to the bottom level (producers)?

Which of the following statements best describes the role of decomposers, such as fungi and bacteria, in the cycling of matter within an ecosystem?

Which of the following describes how matter and energy move differently through an ecosystem?

In a food web, if the population of primary consumers (herbivores) were to suddenly decrease, which of the following would be the most likely immediate result?

Which of the following describes the relationship between oxygen and carbon dioxide during the processes of photosynthesis and cellular respiration?

In a balanced ecosystem, which group of organisms is responsible for capturing the initial energy that supports all other trophic levels?

Which of the following describes the role of the Sun in an ecosystem's energy flow?

Which of the following describes the chemical transformation of matter that occurs during cellular respiration?

Which level of a food pyramid contains the greatest total amount of stored chemical energy?

In an energy pyramid, which group of organisms contains the largest amount of available energy?

In a food web, what do the arrows represent?

Which of the following describes the role of a secondary consumer in a food chain?

What would most likely happen to a food web if the population of decomposers, such as bacteria and fungi, was significantly reduced?

Which of the following organisms would occupy the highest level of an energy pyramid?

Which of the following describes the difference between a food chain and a food web?

Which of the following organisms is classified as a producer?

In an energy pyramid, why does the amount of available energy decrease as you move from the bottom level to the top level?

Which of the following describes an 'Apex Predator' in a food web?

In an energy pyramid, which group of organisms typically occupies the level with the most available energy?

In a food web, what does the arrow pointing from a grasshopper to a frog represent?

Which of the following best describes the role of a decomposer in a food web?

Which of the following occurs to the amount of available energy as it moves from the bottom to the top of an energy pyramid?

In a food chain consisting of grass, a rabbit, and a hawk, which organism is classified as a primary consumer?

Which of the following describes the main difference between a food chain and a food web?

If a specific species of owl is considered a 'tertiary consumer' in a food web, which of the following must be true about its diet?

Which of the following scenarios would most likely lead to a decrease in the population of secondary consumers in a food web?

In an energy pyramid, which group of organisms typically occupies the base (the bottom level) and contains the most available energy?

In a food web, what does the direction of the arrow between two organisms represent?

Which of the following describes the role of a 'decomposer' within a food web?

Which of the following describes the difference between a food chain and a food web?

An owl eats a snake, which ate a frog, which ate a grasshopper. In this specific food chain, what is the trophic level of the owl?

In a forest ecosystem, if the population of hawks (top predators) suddenly decreases, what is the most likely immediate effect on the population of small rodents that the hawks hunt?

Which of the following organisms would be classified as a 'primary consumer' in a meadow ecosystem?

Which of the following terms describes an organism that can create its own food using energy from the sun, forming the first trophic level of an energy pyramid?

Why is an energy pyramid usually much wider at the bottom than it is at the top?

In a marine food web, which role do organisms like bacteria and fungi play when they break down dead organic matter from a whale carcass?

Which of the following organisms would occupy the lowest trophic level in a marine food chain?

Which of the following describes the flow of energy in a marine food chain?

In a marine food web, which of the following is an example of a secondary consumer?

In a marine energy pyramid, which group of organisms contains the largest amount of total biomass and stored energy?

Which of the following describes the role of zooplankton in a marine food chain where they eat phytoplankton and are eaten by sardines?

Which of the following describes the relationship between a food chain and a food web in a marine ecosystem?