Textbook Question
During human gestation, rudiments of all organs develop a. in the first trimester. b. in the second trimester. c. in the third trimester. d. during the blastocyst stage.
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During human gestation, rudiments of all organs develop a. in the first trimester. b. in the second trimester. c. in the third trimester. d. during the blastocyst stage.
Which of the following is a true statement? a. All mammals have menstrual cycles. b. The endometrial lining is shed in menstrual cycles but reabsorbed in estrous cycles. c. Estrous cycles are more frequent than menstrual cycles. d. Ovulation occurs before the endometrium thickens in estrous cycles.
For which of the following is the number the same in human males and females? a. interruptions in meiotic divisions b. functional gametes produced by meiosis c. meiotic divisions required to produce each gamete d. different cell types produced by meiosis