Which factor may influence the specific types of microbes found on the skin?
A) soap and cosmetics usage
B) hormones
C) moisture levels
D) hormones, moisture levels, and soap and cosmetics usage
E) moisture levels and soap and cosmetics usage
Answer: D
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Helicobacter pylori
A. inhabit the stomach. B. inhabit squid ink sacs. C. cause crown gall in plants. D. have axonemes.
A change in chromosome number during
fertilization can lead to
a. sympatric speciation. b. disruptive selection. c. directional selection. d. hybrid sterility. e. allopatric speciation
Actin bundles give shape and support to ________ found in intestinal mucosal cells
A) cilia B) flagella C) microvilli D) nuclei E) lamellipodia
Which of the following are characteristics of the Calvin cycle?
A. The Calvin cycle produces glucose as an end product. B. The Calvin cycle produces carbon dioxide and water. C. Nitrogen is fixed into an organic form during the Calvin cycle. D. The Calvin cycle requires light. E. All of these choices are correct.