All but one of the following statements describes the necessity of the blood testis barrier. Select the one statement that does not describe a necessity of the blood testis barrier
A) Spermatogenesis produces new combinations of genes and chromosomes that results in unique antigens that the immune system may see as foreign.
B) Spermatocytes undergo meiosis only during puberty, well after the immune system has come to recognize "self" from "non-self" cells.
C) Sperm can only be produced at temperatures lower than body temperature. Inflammation in the testis could raise the temperature too high to produce sperm.
D) Foreign antigens produced by the newly formed sperm could initiate an autoimmune response against the developing sperm.
C
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A. enzymes digesting the endometrium around the blastocyst. B. hCG stimulating the growth of trophoblast blood vessels. C. the cessation of the reproductive cycle. D. hyaluronic acid breaking down the myometrium around the blastocyst.
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All of the following are basic functions of the digestive system, except ___________
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