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Important Words

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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Term
Definition
algae   small plants that have not roots or stems and grow on water  
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amphibians   cold-blooded animals with backbones that have gills when young and breathe as adults  
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ecosystem   a community of plants and animals and the environment they live in  
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emergent   plants rooted in shallow water with most of their growth above water  
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endangered   at risk of dying out completely  
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erosion   the gradual process of the wearing away of a substance due to the action of wind or water  
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levees   barriers built to present a river from flooding  
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mammals   warm blooded animals with backbones that feed their young with milk produced by the mother  
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nutrients   substances needed by living things to sty strong and healthy, such as proteins, vitamins, and minerals  
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pollution   harmful materials introduced into the air, soil, or water  
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temperate   a climate that doesn't normally have extreme high or low temperatures  
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tropical   having to do with certain hot, rainy areas  
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