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Life Science 9 Vertebrates, Invertebrates, Mammals, Reptiles, etc.

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Question
Answer
chordate   phylum of animals having gill slits, a notochord, and a nerve cord at some point in their development  
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amphibians   class of coldblooded vertebrates that have a slimy skin  
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cartilage   makes up the skeleton of jawless fishes and sharks and rays  
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cartilaginous fishes   class of fish having skeletons of cartilage  
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cold blooded animals   organisms whose body temperature changes with that of the environment  
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diaphragm   in mammals, a sheet of mascle below the lungs that separates the chest and abdomen regions to aid in breathing  
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egg-laying mammals   the mammals that lay eggs (as reptiles do) and feed young on milk  
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jawless fishes   parasitic fishes having a skeleton of cartilage and lacking jaws, scales, and paired fins  
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mammals   class of warmblooded vertebrates that have hair and feed their young on milk  
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mammary glands   special glands of mammals that produce milk for their young  
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placenta   special organ in mammals that connects the embryo to its mother  
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placental mammals   mammals whose offspring finish their embryonic development in the womb  
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pouched mammals   young complete their embryonic development in a pouch  
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primates   order of mammals that includes lemurs, monkeys, apes, and humans  
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spinal column   backbone, composed of a series of 33 separate bones (vertebrae)  
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uterus   part of the oviduct of a mammal in which the embryo develops  
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vertebrae   the 33 bones of the spinal column  
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vertebrates   animals that possess an internal skeleton and backbone  
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warmblooded animals   animals that maintain a warm body temperature regardless of the environment's temperature  
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womb   part of the oviduct of a mammal in which the embryo develops  
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bill   beak  
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tadpole   immature frog that has no tail, no limbs, and breathes through gills  
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rodents   order of mammals having large front teeth for gnawing wood and other foods  
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bony fish   class of fish having a bony skeleton, overlapping scales, and a swim bladder  
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marsupials   the pouched mammals  
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reptiles   class of coldblooded vertebrates that have a body covering of dry scales  
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