Question

question 7
as mentioned in the textbook, the sickle - cell anemia gene may provide immunity to diseases like malaria. people in areas where malaria is more prevalent may be more likely to possess this gene than people in areas where malaria is rare because of the health benefits associated with protection against malaria. this ability to adapt depending on ones environment best supports which theory?
a theory of evolution by natural selection
b theory of cognitive dissonance
c theory of planned behavior
d theory of self - control

Explanation:

The sickle - cell anemia gene's prevalence being related to malaria prevalence shows how certain genetic traits are favored in specific environments. This is in line with the theory of evolution by natural selection, where traits that confer a survival or reproductive advantage in a particular environment are more likely to be passed on. The other theories (cognitive dissonance, planned behavior, self - control) are not related to genetic adaptation to the environment.

Answer:

A. theory of evolution by natural selection