Answer:
Echinoderms have a calcium carbonate endoskeleton, and vertebrates have a bony endoskeleton made of calcium phosphate. have bones mostly made of calcium phosphate.
Explanation:therefore, echinoderms do not have true endoskeletons.
Answer:
A twisted latter is a way I've always referred to it.
Explanation:
Answer:
it's ok
kayanin mo yan module mo yan ehh ano ka sineswerte ako yung pinapa answer mo?
For cells <span>to stay the same size from generation to generation, the two things that must be coordinated are GROWTH and DIVISION. During the normal cell cycle, cells undergo growth as well as cell division. This is done in different processes. Hope this answers your question. </span>
