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Why does a crab she'll help it survive in his habitat
yes
Endoskeleton. (inside bones) Birds, reptiles, fish, amphibians and mammals have endoskeletons although there is the odd exception to the rule which has both. However no mammals have true exoskeletons.
Amphibians have endoskeletons because their skeletons are inside their bodies. Exoskeleton animals have their skeletons on the outside: such as crabs, lobsters, insects, ect. (Basically an exoskeleton animal "crunches" when it is stepped on. Weird, I know but it will help you remember.) :)
No. Crabs do not have an internal skeleton (endoskeleton). They have only an external skeleton (exoskeleton) that does not have any ribs.
Exoskeletons are usually associated with animals like grasshoppers, crabs, or tortoises – not dogs. dogs have endoskeleton
endoskeleton
An exoskeleton is a boney outer shell (crabs, lobster) as apposed to an endoskeleton which is having the bones on the inside.
no
by smelling there butts
IT has a shell
Because they are stupid