During spermatogenesis
a. FSH is required for spermatid remodeling.
b. spermatogonia divide by mitosis
c. testosterone is essential for both mitosis and meiosis of the germ cells.
d. both (a) and (c) above.
e. all of the above
E
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The bony portion of the nasal septum is formed by the
A) nasal bones. B) perpendicular plate of the ethmoid bone. C) perpendicular plate of the ethmoid and vomer bone. D) vomer and sphenoid bone. E) perpendicular plate of the ethmoid and sphenoid bone.
Low levels of estrogen inhibit the hypothalamus and anterior pituitary, whereas high levels of estrogen stimulate the hypothalamus and anterior pituitary
Indicate whether the statement is true or false
A phagocyte can kill a microbe only after phagocytosis.
Answer the following statement true (T) or false (F)
In the diagram of the tibia and fibula, which structure(s) articulate(s) with the talus and forms a protrusion on the medial surface of the ankle?