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Endoskeleton
Found inside the body and made of cartilage
Exoskeleton
Found outside the body and made out of chitin
Skeleton
the framework of bones and cartilage that supports and protects the soft tissue and the internal organs of the body
Endotherms
- Inside
- Stable
- Uses metabolism to regulate body temp
Ectotherms
- Outside the body
- Uses things around it to regulate body temp
- Not Stable
Vertebrates
Have a backbone
Invertebrate
Do not have backbone
95% of the animal species
Hydrostatic Skeleton
No skeleton