Jointed leg animal: an invertebrate with an outside skeleton, bilateral symmetry, and jointed appendages.
Appendage: a structure that grows out of an animla body.
Exoskeleton: an skeleton on the outside of the body.
Molting: shedding an skeleton.
Compound eye: eyes with many lenses.
Antennae: appendages of the head that are used for sensing, smell, and touch.
Spiny skin animals: an invertebrate with a five part body design, radial symmetry, and spines.
Tube feet: parts of a starfish that are like suction cups and help the starfish to move, attach to rocks, and get food.
Chordate: an animal that, at some time in its life has a though, flexible rod along its back.
Endoskeleton: skeleton on the inside of the body.
Cold blooded: having a body temperature that changes with the temperature of the surrounding.
Gill: a structure used by fish and some other animals to breathe in water.
13. Jawless fish: fish that have no jaw and are not covered with scales
14. Cartilage: a though, flexible tissue that supports nd shapes the bodies of some fish and some animal pats.
15. Cartilage fish: jawed fish in which the entire skeleton is made of cartilage.
16. Bony fish: fish that have skeleton, made mostly of bone.
17. Amphibian: animal that lives part of his life in water and other part in land.
18. Hibernation: the state of being inactive during cold weather.
19. Reptile: an animal that has a dry, scaly skin and can live on land.
20. Warm blooded: having a body temperature that is controlled so that it stays about the same no matter the temperature of the surrounding.
21. Mammal: an animal that has hair and feed their young milk.
22. Mammary glands: body parts that produce milk.
