Ecology Unit Test Review 23

Consumers can only gain energy from consuming an autotroph.

• True

• False

A producer creates its own energy through a chemical process.

• True

• False

A food chain is more complex and accurate than a food web.

• True

• False

What percent of energy at any given trophic level is able to be passed on to the next trophic level as usable energy?

• 10%

• 25%

• 30%

• 55%

Energy flows down an ecological pyramid of energy.

• True

• False

What is another name for an autotroph?

• consumer

• producer

• detritivore

• omnivore

Which of the following places the level of organization in the correct order from SMALLEST to LARGEST?

• Biosphere, biome, ecosystem, community, population

• Population, community, ecosystem, biome, biosphere

• Population, community, biome, ecosystem, biosphere

• Ecosystem, biome, biosphere, population, community

The grass at the beginning of a food chain is an example of a/n

• secondary consumer

• primary consumer

• chemoautotroph

• primary producer

If an organism creates its own energy it's called a(n)__________, if an organism has to consume other living organisms for energy it's called a(n)________________.

• autotroph, heterotroph

• heterotroph, autotroph

In the figure, what are the secondary consumers?

• birds

• grasshopper

• eagles

• grass