Hydrostaic presure and bouancy.
it is animals skeleton
animals with out a skelton a worm.
A hydrostatic skeleton is a type of skeleton many animals in the animal kingdom have.
Almost all animals have a skeleton, whether its an internal skeleton or an exoskeleton. Some animals like the Jellyfish are of without a skeleton, and they are very much ... jelly-like. Examples include earthworms, slugs, etc.
In animals with endoskeletons, muscles surround the skeleton. In animals with exoskeletons,the skeleton surrounds the muscles.
Yes.
it is animals skeleton
This is called an exoskeleton.
skeleton
Animals on land need a skeleton so they maintain a shape other wise land animals would be just blobs of flesh.
I'm pretty sure that it is the skeleton/skeletal system.