Which of the following descriptions about the organization
of an ecosystem is correct? *

The description which is correct is:

Species make up populations which makes up communities.

Explanation:

In biology, species can be described as organisms which can interbreed to form fertile offsprings. Members of a species share many common characteristics. Example of species includes all human beings on earth.

In biology, a population can be described as the number of organisms of a species which are living together in a habitat at a particular time. These organisms have the capability to interbreed and produce fertile offspring.

The organisms present in different populations in an area at a particular time make up a community. For example, a population of birds, a population of insects, a population of plants that live in a certain area at a particular time make up a community.