Science chapter2
Terms
undefined, object
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- vertebrates-
- animals with backbones
- invertebrates-
- animals without a backbones.
- dinosaurs-
- reptiles that have appered about 230 million years ago.
- bony fish -
- jawed fish that have skeletons made mostly of bones.
- amphibians-
-
animals that live part of their lives in water and part on land.
- mammals-
- vertebrates that have hair/ fur on their bodies and feed their young with milk.
- Soft-bodied Animals-
- Animals without bones or shells
- cartilage-
- a tough tissue like the hard tissue in your (outer ear).
- insects-
- tiny,invertebrate animals with six legs.
- reptiles-
- animals that have dry scaly skin.
- adaptation-
- a characteristic of an animal that helps it survive.
- jawless fish
- fish that have no jaws.
- hard-bodiedanimals-
- animals that have hard coverings and bones to support growth.
- jawed fish-
- fish that developed jaws- they can bite and hold food in their mouths.
- adapt-
- to adjust or change