FishBy: Brent, Brendon, Adriana, Bobby, and

Bailey.

Key Termschordates: parts of a phylum.

Notochords: a flexible rod that supports a back.Vertebrate: an animal with a back boneEctotherms: an animal whose body doesn’t produce

much internal heat.Endotherm: an animal who regulates its own temp. fishFish: vertebrate that lives in water.Cartilage: a tissue that is more flexible than bone.Swim blatter: gas gilled sac that helps fish stay at a

certain depth with little to no effort.

The Common Characteristics of a FishThe common characteristics of a fish is they all have fins, live in water, they are ectoderms, obtain oxygen, they have scales, and they all produce little heat

How They Keep Conditions StableThey produce little heat. They keep it the same by going out deep were it is warmer or staying around logs in the water. They also have swim bladder witch is an inter gas filled sac that helps them. The ectoderms help them keep conditions stable to.

Works CitedFish faq www.nefsc.noaa.gov/faq/

science daily www.sciencedaily.com Books: Life science, How Animals Survive,

Fishes, Discovery Atlas of Animals, Encyclopedia of Life science, Sharks, Natures Odd Balls, The Courtship of Animals, Life in the Water, Marshall Cavidish.