Earthworms, bacteria and fungi are all examples of
a. producers.
b. final consumers.
c. primary consumers.
d. secondary consumers.

b. final consumers.

 Plants and algae make their own food and are called primary producers. Herbivores eat plants and are called primary consumers.Carnivores that eat herbivores are called secondary consumers. final consumers are the ones that feed off of these three.

Gravitational force i believe