A DNA molecule that enters a bacterium by one of several mechanisms is called a(n) ________.
A. exogenote
B. endogenote
C. merozygote
D. None of the choices are correct.
Answer: A
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If plants consume CO2 during photosynthesis, why hasn't all the atmospheric CO2 been used up? Select all that apply
A. Photosynthesis also produces CO2 as a product. B. Respiration produces CO2 as a product. C. Both photosynthesis and respiration produce CO2 as a product. D. Plants actually don't use CO2 during photosynthesisâ€"they use O2. E. Photosynthesis and respiration use one another's products as reactants.
A neuron innervating your bicep muscle would be considered part of the
A. central nervous system. B. peripheral nervous system. C. autonomic nervous system. D. sympathetic nervous system. E. parasympathetic nervous system.
The mutual attraction of opposite charges holds atoms together as molecules in a(n) _____ bond
a. ionic c. polar covalent b. hydrogen d. nonpolar covalent
Which of the following types of microbes might be found in a boiling hot spring?
A) hyperthermophiles B) phototrophic bacteria C) methanogens D) non-thermophiles E) halophiles