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According to the big bang theory, after the "bang," the universe remained dark until about 300,000 yearsone billion yearsthree minutesthree billion years later, when neutral atoms began to form.
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How can antibodies "remember" a particular bacterial invader or "antigen" on that invader?
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The human body needs energy in order to carry out life processes such as breathing. where does the body get this energy? a. from eating food b. from learning about new things c. from lying in the sun d. from sleeping
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the inheritance pattern of one gene will not affect the inheritance pattern of another gene. this is...
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