What is morphology? a. the study of differences in body forms b. changes in a population’s gene pool c. the ability of organisms to interbreed d. the study of body biochemistry

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