The zygote develops first into an embroy and then into a fetus
No, but it does have an embryo.
Carpentry nails or human nails? You'll have to be more specific in your question.
Parts composed of non living tissue, for example hair and nails.
Nails have NOTHING to do with soda! Dont dip them in soda cuz NOTHING happens!!!!
develops legs
They produce nails :)
Hyperalgesia develops
nothing, it is a miscarriage.
Fertilization
This literally cannot happen.
They wither and fall off