Question

Which MOST closely defines population density?

A. the number of organisms of a species per unit area
B. it determines how many organisms can survive in a given population
C. the number of organisms in a population that an ecosystem can sustain
D. it consists of all organisms of a species living together in a given area at given time

Answer 1

your answer should be

A. the number of organisms of a species per unit area

Brainliest?

Answer 2

Answer: Option (A) is the correct answer.

Explanation:

Usually, density is defined as mass present in per unit volume.

Mathematically,         Density = $\frac{mass}{volume}$

Since density is directly proportional to mass so, more is the mass of an object more will be its density.

Similarly, population in terms of density is the number of organisms of a species per unit area.

Thus, we can conclude that out of the given options the number of organisms of a species per unit area MOST closely defines population density.