Question 1

which of the following might you study in an ecology class?

habitats

food webs

trophic levels

all of the above
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question 2

what do you call several overlapping and interconnected food chains?

trophic levels

a food web

ecology

none of the above
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question 3

what is another word for consumer?

autotroph

heterotroph

producer

decomposer
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question 4

why are decomposers important?

they break down dead and decaying organic material.

they return nutrients and elements to a usable form in the environment.

they consume the most energy of all the trophic levels.

both a & b are correct.
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question 5

why are trophic levels often displayed as a pyramid?

it is just an attractive way to show them.

it shows how there are many more of the lower levels than the higher ones.

it shows how large the animals are in the levels.

both b & c are correct.
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question 6

which of the following are decomposers?

bacteria

algae

fungi

both a & c are correct.
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question 7

which of the following are humans considered to be?

herbivores

carnivores

omnivores

none of the above
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question 8

which of the following statements is true?

primary consumers must be herbivores.

tertiary consumers must be carnivores.

producers must be plants.

secondary consumers must be producers.
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question 9

which of the following statements is not true?

the top predators are not always the largest animals.

when we humans eat vegetables, we are being primary consumers.

if an orangutan is a secondary consumer in one food web, it must be a secondary consumer in all food webs.

secondary consumers only receive 1% of the original energy passed from the producers.
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question 10

according to the 10% rule, it is healthiest to

from the highest trophic levels.

from the lowest trophic levels.

from all the trophic levels.

there are different healthy things to eat from any level, so it depends.
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