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10 terms

Biology Terms - Unit 7

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vertebrate
an animal with a backbone
mammal
A warm-blooded animal with hair or fur; female mammals produce milk to feed their young.
fish
Vertebrates which live in water, usually have scales and breathe through gills.
amphibian
A vertebrate with moist skin and no scales that lives part of its life in water and part on land.
bird
Egg-laying vertebrates with feathers and forelimbs modified as wings.
reptile
A vertebrate that lays eggs and has lungs and scaly skin.
invertebrate
an animal without a backbone
arthropod
any invertebrate with jointed legs
insect
a class of arthropods that has three sections to their bodies: head, thorax, abdomen, and six legs.
arachnid
an arthropod with two body sections, four pairs of legs, and no antennae