A human egg or sperm contains 23 pairs of chromosomes
Indicate whether the statement is true or false
FALSE
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The process of red blood cell production is called
A) erythrocytosis. B) erythropenia. C) hemocytosis. D) erythropoiesis. E) hematopenia.
Aldosterone exerts effects on principal cells of the kidney by causing
A. increased levels of cAMP and increases in the total number of Na+ channels. B. decreased levels of cAMP and decreases in the number of open K+ channels. C. increased numbers of Na+/K+ pumps. D. decreased numbers of Na+/K+ pumps.
The two main categories of glands are called ____
a. secretive and absorptive b. endocrine and exocrine c. internal and external d. embryonic and latent e. ducted and ductless
What effect would increased stimulation of the motor neurons of the red nucleus have on muscle tone?
A) It would increase stimulation of skeletal muscles, thereby increasing their muscle tone. B) It would increase stimulation of skeletal muscles, thereby decreasing their muscle tone. C) It would decrease stimulation of skeletal muscles, thereby increasing their muscle tone. D) It would decrease stimulation of skeletal muscles, thereby decreasing their muscle tone. E) It would not affect skeletal muscle tone.