Which of the following is a common protist-caused sexually transmitted disease?
a. trichomonisasis
b. yeast infection
c. chlamydia
Ans: a. trichomonisasis
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The specialized structure that stores pigments, water, inorganic ions and maintains turgor pressure is the
A. Golgi apparatus. B. vacuole. C. peroxisomes. D. vesicles. E. lysosomes.
Which statement is true?
a. The partial pressure of oxygen is greater in ambient air than in the blood. b. The partial pressure of oxygen is identical in arterial and venous blood. c. The partial pressure of CO2 is greater in ambient air than the blood. d. The partial pressure of CO2 is greater in arterial blood than venous blood.
Gene therapy is being explored as a means of permanently correcting a defective gene to cure a disease rather than to merely treat symptoms with drugs. Ideally, it would be best to correct these defective genes before a baby is even born
But if it's possible to change diseased genes, what about changing genes that regulate other characteristics, such as height or eye color? Would it be desirable to change the genes of babies for more cosmetic purposes?
Which of the following is NOT a common sign of lead poisoning?
A) Irritability B) Hypotension C) Hypertension D) Constipation