Ecology Review

Front

The sequence that best illustrates the flow of energy through an ecosystem is:
- sunlight → plant → wolf → rabbit
- plant → sunlight → rabbit → wolf
- sunlight → plant → rabbit → wolf
- wolf → rabbit → plant → sunlight

Back

sunlight → plant → rabbit → wolf

Front

Example of an organism being directly affected by a biotic factor.

Back

A squirrel cannot find a mate.

Front

Which level of the pyramid is correctly paired with the type of organism in an ecosystem? Options: Level A – producers, Level B – carnivores, Level C – herbivores, Level D – decomposers

Back

Level A – producers

Front

The final consumers in many food webs are: autotrophs, hosts, herbivores, carnivores

Back

carnivores

Front

How do autotrophs differ from heterotrophs?

Back

Autotrophs synthesize nutrients using carbon dioxide and water.

Front

Which population would be most immediately affected by the removal of the lizard population? Options: sedges, algae, ants, centipedes

Back

ants

Front

Which sequence of organisms represents a food chain within this food web? Options: tadpoles → algae → daphnia → back swimmers, sedges → ants → frogs → kookaburras, algae → daphnia → decayed material → bacteria, dragonflies → sedges → ants → centipedes

Back

sedges → ants → frogs → kookaburras

Front

Which sequence best represents the flow of energy through an ecosystem?

Back

Sun → green plants → herbivores → carnivores

Front

How are materials recycled back to plants in an ecosystem when organisms die?

Back

decomposers

Front

Why are decomposers necessary in a food chain?

Back

return nutrients to the ecosystem