The bones in the front fins of whales and the bones in the human arm evolved from a common ancestor but carry out different functions. this is an example of a. homologous structures. b. vestigial structures. c. embryonic structures. d. analogous structures.

A. homologous structures.

Explanation:

Divergent evolution leads to the development of the evolution of homologous structures in closely related species. These structures have a common basic plan but are adapted to perform different functions according to the habit and habitat of the organism.

Fins of whales and human arms have common basic origin but are adapted to serve in swimming and holding things since whales are aquatic mammals but the human is not. Hence, they are homologous organs.

as resources become scarce because of population growth, the growth decreases after few years due to lack of resources and food.

this is true, assuming that the allele is completely recessive and incomplete dominance is not a factor.