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Which substance can enter a cell by diffusion without having to be digested
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Which of the following is true of photosynthesis? a)carbon dioxide is a reactant b)water is a product c)most reactions within this process are exothermic d)oxygen is a reactant
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How can a geological time scale best be reconstructed? a) comparing vestigial structures in living species b) comparing homologous structures in living species c) examining homologous structures in fossil remains d) examining the written records of scientists from past cultures
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If jane has the blood type ab and marries john who has type o blood what are the possible phenotypes of their first kid?
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Which substance can enter a cell by diffusion without having to be digested...
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