Section: Science

14)

Rainfall in a tropical region is below average for 20 consecutive years. Animals adapted for dry conditions are much more plentiful at the end of the 20 years. Which of the following statements best explains the increase in the population of these animals?

Insects with a high tolerance for dry conditions have migrated out of the region.
Biodiversity in the region has increased due to the dry conditions.
Natural selection has selected against insect species that are adapted for dry conditions.
Natural selection has favored insect species with a high tolerance for dry conditions.
Cloning has favored insect species with a high tolerance for dry conditions

Explanation

Natural Selection is the process whereby organisms better adapted to their environment tend to survive and produce more offspring.