Question

What is the relationship between population density and adult body size?

a. Population density is positively correlated to adult body size.
b. Population density is negatively correlated to adult body size.
c. Populations with high density generally have large-bodied species.
d. Populations with low density generally have small-bodied species.

Answer 1

Population density is typically negatively correlated with adult body size because larger animals require more resources and space, leading to lower population densities. The correct option is b.

Step-by-step explanation:

The relationship between population density and adult body size shows a typical inverse correlation. This means that as the body size of individuals within a species increases, the population density tends to decrease.

The underlying reasons for this relationship can be attributed to factors like resource requirements and space limitations. Larger animals require more resources such as food and territory, which in turn reduces the number of large individuals that can live in a given area without severe competition.

Meanwhile, smaller organisms can sustain higher population densities because they often need fewer resources and can live in closer proximity without as much conflict over space and food.

Hence, Option b is correct.