click below
click below
Normal Size Small Size show me how
Ch1 Lsn 4 #2
Animal Classification
Term | Definition |
---|---|
mammals | Vertebrate animals that make milk to feed their young and are warm blooded |
bilateral symmetry | Animals that can be divided down the middle to make two mirror images |
reptiles | animals that are cold-blooded with thick scaly skin that is waterproof |
arthropods | group that includes spiders, crabs, and insects |
echinoderms | groupd that includes sea stars, sea urchins, and sea cucuamphibianmber |
amphibian | Animals that live in water and on land |
exoskeleton | A covering on the outside of the body |
vertebrates | Animals with backbones |
monotreme | A mammal that lays eggs |
endoskeleton | A hard skeleton inside the body |