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science ch13

chapter 13 part 1

Animals with backbones Vertebrates
amphibians, reptiles, birds and mammals belong to this phylum chordata
carries blood to the heart veins
body temperature changes with temperature of the environment cold blooded animals
tough, flexible material that doesn't contain minerals that makes bones stiff cartilage
these live 1/2 of their life on land and 1/2 of their life in the water amphibians
snakes, turtles, and lizards are examples of these reptiles
an organ that produces a digestive juice that aids in digestion liver
body temperature remains constant no matter what the temperature of the surroundings are warm blooded
carries blood away from the heart arteries
Created by: robincase