RC4 review

Front

What is the mutual dependence between organisms that helps them survive?

Back

Interdependence

Front

What happens to the mouse population when a cat population joins their community?

Back

Mouse population goes down as cat population goes up.

Front

How much energy does trophic level 2 store from trophic level 1?

Back

10%

Front

Which system eliminates solid wastes from the body?

Back

Digestive system

Front

Who protects an animal cell from intruders?

Back

Cell membrane

Front

What is competition in ecology?

Back

The struggle between organisms for the same resources in an ecosystem.

Front

Define adaptation in the context of biology.

Back

A change in an organism that makes it better suited to its environment.

Front

What is natural selection?

Back

The process by which organisms better adapted to their environment tend to survive and produce more offspring.

Front

What is a trophic level?

Back

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

Front

What role do decomposers play in an ecosystem?

Back

They break down dead organisms and recycle nutrients back into the soil.