Env Sci Unit 4 Biomes

Front

What biome is characterized by dry conditions, temperature extremes, little vegetation, and nocturnal animals?

Back

Desert

Front

What biome has four distinct seasons, many trees, and animals with camouflage?

Back

Deciduous Forest

Front

What is a keystone species?

Back

A species that has a disproportionately large effect on its environment relative to its abundance, such as sea otters maintaining marine ecosystems.

Front

In a food web, what do the arrows represent?

Back

The flow of energy from one organism to another.

Front

What is secondary succession?

Back

The process of ecological recovery that occurs after a disturbance in an area that previously supported life.

Front

What is an example of primary succession?

Back

The growth of lichens on a newly created volcanic island.

Front

What is the difference between primary and secondary succession?

Back

Primary succession occurs on previously uninhabited land, while secondary succession occurs in areas where a disturbance has destroyed an existing ecosystem.

Front

What role do decomposers play in an ecosystem?

Back

Decomposers break down dead organic matter, returning nutrients to the soil.

Front

What is an indicator species?

Back

A species whose presence, absence, or abundance reflects a specific environmental condition.

Front

What is a trophic level?

Back

A level in a food chain or food web, representing the flow of energy and nutrients.