Diagnosing a disease involves determining the
A. negativity of the feedback.
B. multiple side effects of a drug.
C. effector and the set point.
D. cause of the homeostatic imbalance.
Answer: D
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The organelles that are the “power plants” of the cell are the:
a. ribosomes b. mitochondria c. Golgi apparatus d. centrioles
In polygenic inheritance,
A) phenotypic characteristics are always controlled by genes on a single chromosome. B) phenotypic characteristics are determined by interactions among several genes. C) phenotypic characteristics are determined by the genes on the Y chromosome. D) phenotypic characteristics are determined by a single pair of alleles. E) phenotypic characteristics are determined by the action of a single gene.
Blood from the face and scalp is drained by the
A) subclavian vein. B) cephalic vein. C) external jugular vein. D) superior vena cava.
Suppose there was a drug that could dramatically decrease mucus secretion. Which of the following may be a side effect of this drug?
A. Decreased mucus secretion would not affect a person's special senses. B. Decreased mucus secretion would enhance a person's ability to smell due to less of a barrier between the odors and the olfactory organ. C. Decreased mucus secretion would also decrease a person's ability to smell due to less fluid associated with the olfactory organ. D. Decreased mucus secretion would enhance a person's sense of taste due to the lack of mucus blocking access to the taste receptors.