What initiates the immune response?
A. suppressor T cells
B. cytotoxic T cells
C. mediator T cells
D. inducer T cells
E. helper T cells
E. helper T cells
Biology & Microbiology
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What will be an ideal response?
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Successive cell divisions convert the zygote into a
multi-cell embryo during a. meiosis. b. parthenogenesis. c. embryonic induction. d. cleavage. e. invagination.
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What describes the movement of substances down their concentration gradients?
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