Ecology Review

Front

What is parasitism?

Back

A relationship between two organisms where one organism benefits at the expense of the other, such as tapeworms in the human intestine.

Front

What is commensalism?

Back

A relationship where one organism benefits and the other is neither helped nor harmed, like vines growing on a tree.

Front

Where does the energy in a food chain start?

Back

The energy in a food chain starts from the Sun.

Front

What happens to the amount of available energy as it moves up through the levels of a food pyramid?

Back

The amount of available energy decreases as it moves up through the levels.

Front

What are producers in an ecosystem?

Back

Organisms that convert raw energy into usable chemical energy, such as plants.

Front

What are decomposers?

Back

Organisms that recycle nutrients by breaking down dead organisms.

Front

What is mutualism?

Back

A relationship where both organisms benefit, such as bees pollinating flowers.

Front

What is competition in ecology?

Back

A relationship where two organisms compete for the same resources, such as food or habitat.

Front

What is a food web?

Back

A complex network of feeding relationships among various organisms in an ecosystem.

Front

What is a trophic level?

Back

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