You are starting a ph. d. program in evolutionary biology, and you want to observe evolution in action. to plan your dissertation on adaptive radiation, you need to find a study site. in what type of environment is adaptive radiation most likely to occur?

In the environment with empty ecological niches available.

Explanation:

Adaptive radiation is most likely to occur in the environment where ample resources are available to support the survival of new species. These empty ecological niches allow diversification of ancestral species leading to adaptive radiation. Resource availability also ensures least or no competition.

Example: Islands

it enhances antibody production by t cells of the adaptive immune system.

hope i'm right

explanation:

small, big, or no change could occur in the phenotype. it could cause something as simple as a cats ears to curl backwards or something as frighting as death. it could also occur in the protien-coding area and have an effect on that but no effect on the amino acids. what has to occur is a changing in the hox gene or the control gene.