The number of primary oocytes in a female is
a. decreased continually throughout her reproductive life from puberty to menopause
b. maintained constant during her reproductive life because those that are lost are continuously replaced by an equal number of new primary oocytes
c. increased at the time of menopause
d. both a and c
e. both b and c
A
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Replacement of dead and damaged cells with the same types of cells is called _________
Fill in the blank with correct word.
A sarcomere is defined as the distance from one _____ to the next adjacent ____ . (The same answer fills in both spaces.)
A. Z disc B. I band C. H zone D. A band E. M line
For reasons that are uncertain, hibernating animals periodically rewarm and recool during the hibernation period. It is thought that this is because
a. they need to void wastes. b. they need to eat a little to restore glycogen stores, especially in their brains. c. they need to rewarm to activate their immune systems in case they've become infected. d. two of these. e. all of these.
The hormone oxytocin is synthesized in the
A. paraventricular nucleus. B. posterior pituitary. C. nucleus of the solitary tract. D. anterior pituitary. E. pineal gland.