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How many chromosomes does each human cell contain? a. 23 chromosomes b. 26 chromosomes c. 43 chromosomes d. 46 chromosomes
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Natural resources are any materials that humans obtain from the earth to meet our wants and needs.
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The function of the excretory system is to control homeostasis and
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Biology, 22.06.2019 20:00
Which of the following statements best distinguishes a hypothesis from a theory? a. theories are hypotheses that have been proved. b.hypotheses are guesses; theories are correct answers c. hypotheses usually are relatively narrow in scope; theories have broad explanatory power. d. theories are proved to be true; hypotheses are often contradicted by experimental results.
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The crustal plates of the lithosphere “float” because of in the asthenosphere.
Continental Shift
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