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Ch 7 Houghton Mifflin 5th grade Science

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Answer
Amphibians   Animal with smooth, moist skin; it has gills when young and then develops lungs when older. Frogs, toads, and salamanders are amphibians  
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Angiosperm   A vascular plant that produces seeds from flowers.  
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Bacteria   small single celled organisms that do not have a nucleus.  
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Cnidarian   invertebrates with radial symmetry, a saclike body, a true mouth, and the ability to digest food.  
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Dichotomous Key   a tool used to identify organisms based on contrasting pairs of characteristics.  
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Fungi   a kingdom of organisms, with a nucleus that get nutruients by decomposing other organisms.  
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Gymnosperm   a vascular plant that produces seeds, but not flowers or fruits.  
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Invertebrates   an animal without a backbone.  
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Kingdom   the highest level of biological classification.  
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Nonvascular   lacking a water transport system.  
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Protists   a single-celled or multicellular organism that may share characteristics with plants, fungi, and animals  
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Protozoa   animal- like protists, including amoebas and parameciums  
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Symmetry   matching form on opposites sides of a dividing line.  
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Vascular   having a tube like water-transport system.  
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Vertebrate   an animal with a backbone.  
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Archaebacteria   meaning "ancient bacteria", a kingdom of single celled living thinkgs that resemble eubacteria but typically live in extreme weather.  
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Eubacteria   meaning "true bacteria", a kingdom of single-celled living things that lack a nucleus and are found in most every environment.  
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