Animals eating plants are categorised separately as ...$A$..., they are in a broad ecological context, not very different from ...$B$...

Choose the correct option $A$ and $B$

Members of a population

Which one of the following is most appropriately defined?

Within biological communities, some species are important in determining the ability of a large number of other species to persist in the community. Such species are called

In an aqueous environment, the microscopic animals are collectively called

Mycorrhizae are the example of