Which condition is a population that descended from a small number of common ancestors more likely to have?
a. increased frequency of mutation in their genes
b. decreased ability to survive changing conditions
c. increased frequency of genes that support survival

Mike has a problem with his testosterone. he is unable to produce enough. which will most likely be affected by his inability to produce testosterone? check all that apply.

Which describes the habitat of a frog?

Which of the following are not matched correctly? cd8+: directly destroy infected or cancerous cells t reg cell: reduce the adaptive response once threat passes t l: activate cellular branch (cytotoxic t cells, macrophages, nk cells) t 2: stimulate b cells to make antibodies t (cd4+): mhc i