endoskeleton
There are 159 bones in a frog skeleton, depending on what type of frog.
Hollow.
Yes. The same number as us humans do in our coccyxes.
Yes, there is a bird called the starling.
Eagle, owl, condor, hawk (IMO)
no
They have a type of skeleton called a hydrostatic skeleton. This type of skeleton is a fluid filled sac which is surrounded by muscles.
Internal Skeleton
internal skeleton
a sponge skeleton
it doesn't have a skeleton
American Robins are not invertebrates. They are classified as vertebrates. They will primarily prey on soft invertebrates such as earthworms.
A hollow bone structure (skeleton).
worm
There are 62,305 different type of skeleton.
Hollow like any other bird!
Yes, a hydrostatic skeleton is a type of skeleton found in certain invertebrates that uses fluid-filled compartments to provide support and structure to the body. It relies on the pressure of the enclosed fluid to maintain body shape and movement.