Spermatogenesis is governed by _____

a. GnRH
b. luteinizing hormone only
c. luteinizing hormone and follicle stimulating hormone
d. follicle stimulating hormone only
e. GnRH, luteinizing hormone, and Sertoli cells


ANSWER: c

Biology & Microbiology

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The ________ is a complex structure or set of structures lying beneath the plasma membrane of many protozoa and some algae, which serves as a supportive mechanism for these cells.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

In the knee-jerk reflex arc, the synapse between a sensory neuron and a motor neuron occurs where?

a. in the brain b. between the receptor and the spinal cord c. within the muscle of the leg d. within the spinal cord e. in the nerve leading to the spinal cord

Biology & Microbiology

Which structure is the site of the synthesis of proteins that may be exported from the cell?

a. rough ER b. lysosomes c. plasmodesmata d. Golgi vesicles e. tight junctions

Biology & Microbiology

All of the following are true of Adipose except ___?

a. Serves as insulation b. Energy storage c. Connective tissue d. no nucleus e. nucleus pushed off to side of cell

Biology & Microbiology