Question

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

Answer 1

the answer is : "A. all the members of the same species living in the same ecosystem at the same time"