How are changes in populations related to the availability of an ecosystem's resources?

Question

A.
Population sizes are limited by the amount of resources that are available.
B.
Large populations need the same amount of resources as small populations.
C.
Changes in population are independent of the availability of an ecosystem's resources.
D.
As populations grow, ecosystems produce more resources in order to support the larger population.

Answer 1

The correct answer is:

A. Population sizes are limited by the amount of resources that are available.

This option signifies that the availability of resources such as food, water, and habitat directly impacts the size and stability of populations within an ecosystem. When resources are plentiful, populations can grow; however, when resources are scarce, population sizes are generally restrained.