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phylum chordata test
| Question | Answer |
|---|---|
| Define: Chordate | an animal phylum that is made up of fish, amphibians, reptiles, birds, and mammals. Some are vertebrates and some are invertebrates. |
| Define: Notochord | it is a rod-like structure that supports the body of a developing chordate. |
| 4 characteristics of a chordate | -notochord -bilateral symmetry -dorsal hollow nerve cord -ONE MORE |
| Fish- how do they get oxygen? - how do they move? | fins help fish move and gills help fish get oxygen. |
| 4 characteristics of an amphibian | -lay eggs that do not have hard coverings -young amphibians live in water and have gills -most adult amphibians develop lungs and live on land. - three-chambered hearts |
| 4 characteristics of reptiles | - waterproof skin and covered in scales -Three-chambered hearts -have lungs throughout their lives -fluid-filled eggs with leathery shells |
| 4 characteristics of birds | -still feathers that enable them to move in the air - birds have beaks and they do not chew their food -their digestive systems include gizzards. -lay fluid-filled eggs with hard shells |
| 4 characteristics of mammals | - have hair or fur covering their bodies. -mammary glands produce milk that feeds young mammals. -4 chambered hearts -warm blooded |
| how are Cartilaginous fish structured? | lightweight, flexible skeleton made of cartilage rather than bone. |
| Some fish have other structures?- bony fish | bony skeleton, a protective gill |
| Birds have a structure to grind food? | with the gizzard |
| animal classes | Mammalia, Aves, Reptillia, Amphibia, fish |
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SofiaContac