Env Sci Ch 3 Flash Cards

Front

Arrows in a food web represent...

Back

energy

Front

Producer:

Back

Organism that makes its own energy.

Front

Consumer:

Back

Eats other organisms for food & energy.

Front

Effect on rabbit population if foxes leave the area?

Back

Rabbit population would increase.

Front

An organism that eats primary consumers.

Back

Secondary Consumer

Front

Effect of earthworm removal on food chain:

Back

The number of crayfish will decrease.

Front

Source of energy for algae in a lake ecosystem?

Back

sunlight

Front

In a positive feedback loop, each action creates a consequence that __________ the other action.

Back

increases

Front

In a negative feedback loop, each action creates a consequence that __________ the other action.

Back

decreases

Front

A system that receives inputs and produces outputs is an

Back

Open System