Ecology Test

Which of the following is an abiotic factor?

• human

• air

• frog

• grass

Which of the following best describes the role of mushrooms in an ecosystem's food chain?

• decomposer

• herbivore

• predator

• producer

Which of the following is NOT an example of an abiotic factor?

• temperature

• sunlight

• soil

• toad

The role or job of an organism in an ecosystem is called its ________.

• habitat

• consumer

• niche

• abiotic

All of the following are examples of niches EXCEPT

• a bee pollenating a flower

• a sea anemone protecting a clown fish

• mushrooms decomposing a dead organism

• a frog hopping down the road

Only a small amount of energy stored in food is available to the next organism in a food chain because __________.

• most of the energy is used for life processes.

• there are more consumers at the top of the energy pyramid.

• the decomposers are at the top of the energy pyramid.

• None of the above.

Animals are _____________________; they obtain energy when they feed on producers and other animals.

• food chains

• decomposers

• food webs

• consumers

Why do producers have the most energy available to them?

• They have enough water in the soil.

• They have roots that are able to extend into the dirt.

• The sun provides their energy.

• Bugs land on them to give them energy.

Under a log, Kendrick finds ants, termites, worms, and roaches. All of these organisms belong to a(n)_____.

• an organism

• individual

• community

• none of the above

Jordin sees many deer crossing the road while she is riding her bike through the countryside. All of the deer belong to a __________.

• community

• population

• organism

• abiotic factor