Final answer:
The species composition of a community is known as the species richness, which indicates the number of different species present in a specific habitat and is an important measure of biodiversity. Option C.
Step-by-step explanation:
The species composition of a community is also known as the species richness, which is a list of the various species found in that community. To elaborate further, species richness is a term used to describe the number of species living in a habitat or geographic area.
This measure is one aspect of biodiversity, which describes a community's biological complexity. It is simply a direct count of the number of species within a defined area. When corrected for total abundance, species richness can be used to produce a diversity index, such as Simpson's Diversity Index.
This concept is crucial for understanding community structure and the dynamics of how species interact with each other in an ecosystem. Option C.