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Rewards Science Lesson 3 Vocab

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Across
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A type of reindeer living in northern Canada and Alaska.
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Changing waste to reusable items.
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A simple, nonflowering plant that is usually found in or around water.
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In relation to something else; comparatively.
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The process by which certain organisms break down energy-rich molecules in order to make their own food.
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A killer whale
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An organism that lives in or on another organism and receives benefits while harming the other organism.
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So small as to be seen only with a microscope.
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The result of being placed, or arranged, in a certain way.
Down
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Shared.
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More than one alga; the plural of alga.
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An instrument used to see very small things.
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Organisms that break down dead organisms.
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Organisms that eat other organisms.
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Organisms that produce their own food.
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Slow growing plants composed of algae and fungi.