Fact 1: Communities consist of populations of different species. Fact 2: Herons are an indicator species for wetland communities. Given the two facts above, different species such as what take up in the wetlands?

Select from the following.
A). ferns.
B). the moon.
C). herons.
D). bushes.
E). wetlands.
F). polar bears.
G). plants.
H). animals.
Answer:
C).