Which of the following is NOT true of farsightedness?
A. A convex lens is used to correct farsightedness.
B. It is caused by the eyeball being too long.
C. When a person is farsighted, distant objects are clear, but close objects look blurry.
D. It is also called hyperopia.
E. All of these are true of farsightedness.
Answer: B
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What circulatory system loops between the heart and lungs?
a. pulmonary b. systemic c. arterial d. venous
Each of the following local factors produces the relaxation of arteriolar smooth muscle except increased
a. acid b. carbon dioxide c. osmolarity d. oxygen e. potassium
Which of the following is likely to produce an IPSP?
a. opening Na+ channels b. opening K+ channels c. opening Cl? channels d. b or c
Which is not a function of the kidneys?
A. Regulation of blood pressure B. Regulation of lymphocyte production C. Regulation of acid-base balance D. Removal of wastes from the blood E. Regulation of erythrocyte production