The statement that could explain the reason for the decrease in population of an animal from 800 individuals to 600 individuals is: The population size of the animal's predator increased.
<h3>POPULATION:</h3>
Population refers to a collection or assemblage of individuals of a species of organism. A population decrease means loss of individuals of a species.
Population decrease can be attributed to the following reasons:
Increase in the number of predators of that species.
Emigration i.e. moving out
Increase in competition within the population
This means that a population decrease in the animal in this question could be caused by an increase in the population of predators.
