Which is NOT a compound?

a. salt (NaCl)
b. a carbohydrate (contains C, H and O)
c. carbon (C)
d. a nucleotide (contains P, C, H, and O)
e. methane (CH4)


Answer: c

Biology & Microbiology

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Blood pressure depends on:

a. the height and weight of an individual. b. atrial volume and stroke rate. c. blood flow and resistance of blood against the vessel walls. d. total blood volume. e. heart rate.

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We see that in the Eumetazoa, one of the advances is toward bilateral symmetry. What kinds of things does bilateral symmetry enable an organism to do?

What will be an ideal response?

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Tuberculosis is caused by an infectious bacterium and causes an annual death toll of 1 to 3 million worldwide people

A) Skin cancer B) Carbon footprint C) Age structure D) Emigration E) Desertification F) Chlorofluorocarbon G) Ozone H) Carrying capacity I) Density-dependent J) Death rate

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Inflammation is characterized by

a. redness. b. swelling. c. heat. d. pain. e. all of the above.

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