When dendritic cells ingest antigen, they migrate to the ________, where they present the antigen to T lymphocytes
A) kidneys
B) lymph nodes
C) thymus
D) spleen
Answer: B
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Gemmae function for
a. sexual reproduction. b. water retention. c. anchorage of a liverwort thallus to the substrate. d. asexual reproduction.
Which of the following organisms is mismatched with their organs of excretion?
A. Malpighian tubules - reptiles B. Kidneys - humans C. Earthworms - nephridia D. Planarians - flame cells
Prior to birth, stretching of the cervix by the baby's head stimulates the release of
A) colostrum. B) oxytocin. C) prolactin. D) estrogen. E) progesterone.