The primitive stem cell of spermatogenesis, which is found on the periphery of each seminiferous tubule, is called a ________
A) spermatogonium
B) spermatid
C) primary spermatocyte
D) secondary spermatocyte
E) sperm
A
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Inhibin
a. is produced by the Leydig cells b. is produced by the developing sperm cells c. signals the interstitial cells d. does both a and c e. does none of the above
Which of the following is NOT a structural classification of joints?
A. Fibrous joint B. Diarthrotic joint C. Cartilaginous joint D. Synovial joint E. All of these are structural classifications of joints.
Which of the following are lipids that are routinely used for energy?
A. Phospholipids B. Steroids C. Triglycerides D. Amino acids
Some rat poisons contain a toxin that blocks the liver's ability to utilize vitamin K. Animals that consume this poison would die of
A) anemia. B) acidosis. C) hemorrhage. D) thrombocytopenia. E) starvation.