Question

Select the correct answer.

Which of the following is caused by the modification of density-independent factors?
A. Parasitic wasps invade cocoons, killing many caterpillars.
B. Periodic drought causes an abrupt decrease in vegetation.
C. Organisms compete for food, water, and other resources.

Answer 1

B. Periodic drought causes an abrupt decrease in vegetation.

Step-by-step explanation:

A is not a density-independent factor, as wasps invading cocoons to create more offspring is not based on density. It is part of the way that they reproduce.

C also is not based off density, as animals don't really live "densely".