Over a lifetime, the brain shrinks by about ________ percent.
A. 10
B. 1
C. 40
D. 5
Answer: A
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Which of the following structures would be affected the most by a deficiency in collagen?
A. The epidermis of the skin B. The bones C. The liver and spleen D. The lining of the small intestine
Homeostatic control that takes place at the tissue or cell by using paracrine or autocrine signals is called ________.
A) down-regulation B) Cannon's law C) reflex control D) local control
Glucose is not normally found in the urine because:
a. does not get filtered out of glomerulus. b. it is not found in the blood. c. it is reabsorbed by renal tubule cells usually. d. it is kept in the blood. e. none of these answers.
Adaptation of the olfactory sense to the continued presentation of an odorant
a) occurs rapidly. b) increases sensitivity to that odorant. c) occurs slowly. d) does not occur. e) enhances gustation.