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5 ATHENA ch 4 Scott Foresman 2008

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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vocabulary word
definition
photosynthesis   the process by which plants use light energy to make sugars  
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xylem   tubes in vascular plants that carry water and other materials  
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phloem   tubes in vasular plants that carry sugar away from the leaves  
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pollen   a grain yellow powder made at the top of the stamen of a flower  
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pollination   moving pollen fron the stamen to the pistil  
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embryo   a new plant inside a seed  
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spore   a tiny plant that will develop into a new plant  
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tropism   a way that plants change their growth because of something outside of them  
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growth hormaon   a chemical that causes more cells to grow and helps cells to grow larger  
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