In adults, erythropoiesis exclusively takes place in
A) the liver.
B) yellow bone marrow.
C) red bone marrow.
D) the spleen.
E) lymphoid tissue.
Answer: C
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After an injection of prostaglandin, a cow will usually enter heat within ________________________________________ to ________________________________________ days
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Which of the following is NOT an effect of dropping blood glucose levels, 1-2 hours after a meal?
A. increased sympathetic stimulation causes insulin secretion to decrease B. decreasing blood nutrient levels cause increased growth hormone secretion C. decreasing blood nutrient levels cause increased cortisol secretion D. increasing parasympathetic stimulation causes increased glucagon secretion
Exposure to ultraviolet light darkens skin by stimulating synthesis of
A) hemoglobin. B) cyanin. C) carotene. D) melanin.
Which of the following is NOT a function of the lymphatic system?
A. Defending from infection caused by microorganisms and other foreign substances. B. Aiding in erythropoiesis of red blood cells. C. Maintaining fluid balance by returning excess interstitial fluid to the blood. D. Absorbing and transporting lipids from the digestive tract.