Section: Natural Sciences

22) An ecological niche

1. may be occupied by only one species.
2. may be occupied by any number of species.
3. may be occupied by only one individual.
4. is a micro-habitat.
5. is really non distinguishable

In biotic communities, most populations can be assigned to one of several roles such as a food producer, a first-order consumer, a parasite, etc. Each role is recognized as a niche and only one species occupies a particular in specific niche in a community.