Ecosystems Review questions – Energy and Cycles
1. List an example of a: Carnivore, omnivore, detritivore, autotroph and herbivore
2. The interaction of the abiotic and biotic factors in an environment constitutes a(n):
3. When an organism dies, its matter is:
4. Give an example of an abiotic factor and biotic factor in a forest ecosystem.
5. Each organism occupies a particular trophic level in a food chain. As the trophic level increases, what happens
to the amount of available energy?
6. The first trophic level contains:
7. Draw an example of a food web that includes a hazelnut tree, a mushroom growing on fallen leaves on the
forest floor, a mouse that eats nuts and mushrooms, a squirrel that eats nuts, and a hawk that eats mice and
squirrels.
8. What is a producer and a decomposer?
9. How is respiration similar to burning fossil fuels?
10. List 2 things that absorb carbon dioxide.
11. List 3 things that release carbon dioxide.
12. When global temperatures rise, glaciers melt, which causes global temperatures to go up even more. This is
an example of what type of feedback?
13. When carbon dioxide dissolves in water it makes the water more:
14. List 3 possible effects of higher global carbon dioxide levels.
15. Plants use nitrogen to make proteins. What is present in the soil that makes nitrogen directly available to
plants?
16. When free atmospheric nitrogen is converted into nitrates so the plants can use them is referred to as:
17. Why are bacteria essential for an ecosystem to stay healthy?
Ecosystems Review questions – Energy and Cycles
1. List an example of a: Carnivore, omnivore, detritivore, autotroph and herbivore
2. The interaction of the abiotic and biotic factors in an environment constitutes a(n):
3. When an organism dies, its matter is:
4. Give an example of an abiotic factor and biotic factor in a forest ecosystem.
5. Each organism occupies a particular trophic level in a food chain. As the trophic level increases, what happens
to the amount of available energy?
6. The first trophic level contains:
7. Draw an example of a food web that includes a hazelnut tree, a mushroom growing on fallen leaves on the
forest floor, a mouse that eats nuts and mushrooms, a squirrel that eats nuts, and a hawk that eats mice and
squirrels.
8. What is a producer and a decomposer?
9. How is respiration similar to burning fossil fuels?
10. List 2 things that absorb carbon dioxide.
11. List 3 things that release carbon dioxide.
12. When global temperatures rise, glaciers melt, which causes global temperatures to go up even more. This is
an example of what type of feedback?
13. When carbon dioxide dissolves in water it makes the water more:
14. List 3 possible effects of higher global carbon dioxide levels.
15. Plants use nitrogen to make proteins. What is present in the soil that makes nitrogen directly available to
plants?
16. When free atmospheric nitrogen is converted into nitrates so the plants can use them is referred to as:
17. Why are bacteria essential for an ecosystem to stay healthy?