D. fingernails
Skin, hair, and vertebrae are all the outer layer of the body and protect the body. The fingernails aren't part of that.
Answer:I'm pretty sure the answer is a or c for asexual reproduction.
Explanation:Because these are all types of asexual reproduction.
May be eukaryotic. I hope this helps!
Is when you breathe in oxygen and exhale carbon dioxide
The correct answer is C minerals -apex