What phrase best describes a community?

a. the different types of predators in an area
b. the various species of plants in an area
c. all populations of organisms living in an area,

The correct answer is -

C. all populations of organisms living in an area.

Explanation:

Community can be described as interacting group of populations belonging to different species, inhabiting any particular location.

For instance, a forest of trees and growing plants, which is also inhabited by different animals and microbial population forms biological community of that area.

the answer is true when observing or determining population size, a direct observation is use, in which each organism is counted in a population or in an area. one benefit of this measure is that you get the exact population count but it will take a long time to  determine  the  size  of a  population.

condenser is used to focus in the light microscope.