Carbonic anhydrase in red blood cells catalyzes formation of bicarbonate from water and _____

a. oxygen c. oxyhemoglobin
b. hemoglobin d. carbon dioxide


D

Biology & Microbiology

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Which of the following initiates the process of transcription?

a. RNA polymerase b. DNA polymerase c. helicase d. transfer RNA e. exons

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Feeding in sponges is dependent on

a. collar cells. b. pores. c. water flow. d. pores and water flow. e. all of the above.

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Mycorrhizal fungi

What will be an ideal response?

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Which phrase best describes the exodermis?

a. the outer layer of roots, including root hairs b. the above-ground continuation of the endodermis c. the substitute for the endodermis in gymnosperms d. found in the roots of most flowering plants

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