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6th Grade Science (Ch. 8-10)

T.C. After School
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Across
1
Reaction to a stimulus.
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Species that is in danger of becoming endangered.
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Cells with membrane-bound structures are called:
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Organic molecules made up of amino acids.
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Change from liquid to gas.
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Water falling from clouds.
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Any living thing.
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All of the changes that take place during the life of an organism.
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Smallest unit of an organism.
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Cells without membrane-bound structures
Down
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The word we use to describe a species that is in danger of becoming extinct.
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Any living thing.
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Organelles where energy is released when food is broken down into carbon dioxide and water.
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The variety of life in a ecosystem.
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The chemical that contains the code for the cell's structure and activities.
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Change from gas to liquid.
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Anything that causes change.
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All cells are directed by the:
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The word we use to describe a species that no longer exists.