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Chapter 9 (Echinoderm (Starfish, Sea Urcin, Sea cucumber, Brittle Star),…
Chapter 9
Echinoderm
Starfish
Sea Urcin
Sea cucumber
Brittle Star
Reptiles
exothermic vertebrate
lays eggs on land
thick skin so they can keep in water
Amphibians
Salamader
Newt
Frog
Birds
endothermic vertebrates
lays eggs
hollow bones
worms
Their brains help them detect food and predators
All worms have bilateral symmetry
Sponge
asymmetrical invertebrates
take food into their bodies to get food
Mollusks
Invertebrates with soft
Cnidarians
radial Symmetry
lack organ
have some tissues
Arthropods
Crabs and spider or inverebrates.
Exoskeleton
The outer cover is called and exoskeleton or outer skeleten
Exoskeleton
Fish