The influence of testosterone on undifferentiated spermatogonia and Sertoli cells results in the hormone dictating
A) mitosis in immature sperm.
B) rate of sperm production.
C) when and how much LH and FSH are released.
D) the production of ADH.
E) the occurrence of ovulation.
B
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Aside from using light as a source of energy, another important part of the functional diversity of some bacterial phototrophs is their ability to
A) bioluminesce. B) form prosthecate and stalked cells. C) fix nitrogen gas. D) degrade neurotoxins.
Which of the following describes an organelle?
a. A membrane-bound sac within a cell b. A structure made of tissues operating together c. A group of similar cells carrying out the same function d. An individual living entity
Muscle electrical activity can be recorded in a lab using a ___
A. Electrocardiogram B. Electrogastrogram C. Electroencephalogram D. Electromyogram
The first phase in normal cellular respiration and the only one occurring in the cytoplasm is called ________
A) electron transport B) the citric acid cycle C) glycolysis D) None of the above is correct.