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The large ground finch obtains food by cracking seeds. what is its short, strong beak an example? a) tendency toward perfection b) adaptation of a species over time c) selective use and disuse of an organ over time d) scarcity of recourses
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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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Match the description of each organism to the appropriate category
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What in scientific term why the salty popcorn causes this thirst
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Which of the following is not a theory about the cause of the permin period mass extinction...
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