Answer :
Community refers to all the population in a specif area or region, at a certain time.
Its structure involves many types of interaction among species. In general, a community that has a high diversity, is more complex and stable than a community that has a low diversity.
So, answer b) Populations
Its structure involves many types of interaction among species. In general, a community that has a high diversity, is more complex and stable than a community that has a low diversity.
So, answer b) Populations