Ecology

Question 1 of 10

About what percentage of the energy at one trophic level passes to the next?

Question 2 of 10

The role an organism plays in its ecosystem is its

Question 3 of 10

Competition occurs when organisms

Question 4 of 10

In a food chain, the organisms that make their own food are the

Question 5 of 10

Organisms that break down dead matter are

Question 6 of 10

All the populations living in an area make up a

Question 7 of 10

Organisms that break down dead matter and return nutrients to the soil are

Question 8 of 10

Energy is lost at each trophic level mainly as

Question 9 of 10

A food web is

Question 10 of 10

A pyramid of biomass may be inverted in