Scraping the inside of her cheek with a toothpick, a student was able to collect and view several identical cells on a microscope slide. This suggests the inside of her cheek shows which level of organization? Select one:

Tissue.

Organ.

Organism.

Organ system.

The sea slug that considered to be a photosyntheesizing animal

What is a population? a. all the members of the same species living in the same ecosystem at the same time b. the number of a species living in the same ecosystem over a period of time c. the total number of organisms living in an ecosystem at a point in time d. all the members of a food web in the same ecosystem

If we assume that, in the african savanna, rainfall and the amount of grass is plentiful, what other factor would best explain a reduced antelope population?