An endoskeleton
an internal skeleton is what humans, and most animals have. the bones are on the inside of the body.
Butterflies reproduce by internal fertilization and not by external fertilization. Butterflies, like most insects, will then lay the eggs and wait for them to hatch.
THEY USE THERE MUSCLES TO MOVE THEM AROUND. THEY USE THERE MUSCLES TO MOVE THEM AROUND.
We have skeletons so that we don't look like a big glob.
Girdle
Paleopathology
Yes, they do in deed. It's just like how us, humans, also have internal skeletons. Therefore, internal skeletons have bones.
Orangutans are mammals who have internal skeletons.
No.
No plants have internal skeletons
Insects do not have internal skeletons, the have Exo-Skeletons.
Their skeletons tend to be on the outside
yes
Yes.
No they are made of cartilage
External
Echinoderms have internal skeletons.
Ants are not vertebrates. They do not have internal skeletons.