What is a person's perception and expression of individual qualities and group
membership called?

colors do exist. the color of the sky is actually violet; humans percieve the color of the sky as blue.

because photosynthesis could not occur (apex)

essentially, one bacterial cell splits into two daugurer cells. bacterial offspring don't need or get care from their parents because they are in a sense their own parents. that said, some bacteria can and do depend on other bacteria especially in harsh environments such as bacterial microfilms in hot water tanks.