The waxy coat of sloughed epithelial cells that covers the fetus is called ________.
A. primary hair
B. lanugo
C. fetal hair
D. colostrum
E. vernix caseosa
Answer: E
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Fill in the blank(s) with the appropriate word(s).
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A. marking a target for phagocytosis, and it is facilitated by interaction of the Fc region of the antibody with a phagocyte. B. activation of NK cells, and it is a function of the antigen-binding site of the antibody. C. cross-linking several antigens together so that they are no longer soluble, and it is facilitated by the Fc region of the antibody. D. fixation of antibodies in the IgG and IgM classes, and it involves the antigen-binding site of the antibody.
Is it ethical to commercialize and sell eggs and sperm for reproduction?
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