One word.............yes.
It is a good example of an exoskeleton.
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a skeletal system
Well animals nails will be on an animal but human nails are on humans but i thing that animal nails are stronger and contain more ivy
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Keratin is a type of protein that serves as a structural building block in the human body, making up tissues such as hair, nails, and the outer layer of the skin. It provides strength, support, and protection to these structures, helping to maintain their integrity and function.
The exoskeleton (carapace) is made mainly of chitin, also a component of our hair and nails!
Jellyfish would be an example.
Yes. For example, Ants.
yes
Carpentry nails or human nails? You'll have to be more specific in your question.
No. A good example is humans; Humans certainly do have a backbone, but no exoskeleton (well, I don't, anyway).