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Which of the following is an example of a non-falsifiable hypothesis? a. there is a teacup orbiting the milky way galaxy. b. there is no life on mars. c. the human species started in africa. d. humans cannot live without the amino acid methionine
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What is the answer for the complicated molecules that make up living things usually contain carbon. why is carbon so important in these molecules?
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Acell in the human nervous system whose primary function is to form myelin and the blood-brain barrier, respond to injury, remove debris, and enhance learning and memory is called a(n) cell.
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Dna is a nucleic and polymer composed of which repeating structural unit?...
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