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.
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Master Sexual and Asexual Reproduction with a bite sized video explanation from Jason Amores Sumpter