How are trace fossils unique
show the activities of an organism and not the body
they s...
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As a small change in a person's dna can cause a genetic disorder
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Which statement correctly describes a way that mutations increase the likelihood that a species will survive in a changing environment
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For a comparative or experimental investigation, scientists often make a testable about a scientific question, and then they test it in the investigation. a.control b.hypothesis c.procedure d.system
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Which of the organisms listed below performs nitrogen fixation? a. legumes b. plants c. bacteria d. fungi
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