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Which of the following statements about archaea and bacteria is true? a. neither is single-celled. b. they both have nuclear membranes. c. neither reproduces by binary fission. d. they both lack a nuclear membrane.
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The breakdown of food is accomplished by enzymes. a. physical b. chemical c. mechanical d. none of the above
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What best explains the inability for life to exist in earth early atmosphere
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The cluster of developing cells from conception until birth is called an
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Describe an example of a feedback loop in nature or in your everyday life.
What is a feedback loop...
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