Question

The members of an animal community are usually similar in

Answer 1

Answer: Environmental requirements

Almost all members of an animal community have the same environmental needs in order to survive. The animals need water, food and shelter. Moreover, they need a common environment for food, using them as a place to build a nest, growing on them, niche for fighting, grooming, mating, pollinating and hunting.  

Answer 2

In the question in which in an animal community, it's members are usually the same in the environmental requirements which is then the answer. Hope this is the answer you are looking for and would be of big help then.