When you think of an organism changing its environment, you may think of large animals like humans that leave obvious signs of where they have been. However, even very small organisms make an impact on the environment. One small organism makes an impact by burrowing in the soil, helping to mix it and make it more fertile.

Question

What animal helps create more fertile soil?
Responses
A bacteriabacteria
B earthwormsearthworms
C fungifungi
D slugs

Answer 1

The animal that helps create more fertile soil by burrowing in it and mixing it is B. earthworms.