Which hormone maintains the viability of the corpus luteum?
A) estrogen
B) human chorionic gonadotropin
C) progesterone
D) human placental lactogen
B
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The number of chromosomes in daughter cells produced by meiosis is ________ the number of chromosomes in daughter cells produced by mitosis.
one-fourth half equal to twice four times
The least numerous but the largest of the papillae are arranged as a V-shape on the posterior dorsal surface of the tongue. They contain the majority of taste buds and are called ________ papillae.
A. papiform B. filiform C. fungiform D. vallate E. foliate
The thalamus
a. performs preliminary processing of all sensory input on its way to the cortex b. inhibits muscle tone throughout the body c. controls thirst, urine output, and food intake d. plays a role in emotional and behavioral patterns e. selects and maintains purposeful motor activity while suppressing useless or unwanted patterns of movement
Which statement is incorrect?
a. Rising to moderate levels of estrogen inhibit the hypothalamus and anterior pituitary in negative-feedback fashion. b. Under the influence of estrogen from developing follicles, both FSH and LH secretion both continue to decline throughout the follicular phase. c. Both estrogen and progesterone are required to completely inhibit tonic LH secretion. d. A high level of estrogen stimulates LH secretion and initiates the LH surge. e. Progesterone powerfully inhibits both FSH and LH secretion.