The Answer is fast<span> twitch</span>
Answer:
I think it's B and C (viewpoint)
1st answer is the heart the heart often contracts even after removed. 2nd answer is single nucleus ,stained branching cells. 3rd answer is biceps.
It might be that you bruise easily or something you didn't notice, but if you continue to get bruises I would talk to a doctor or parent.
The study of statistics such as births, deaths, income, or the incidence of disease, which illustrate the changing structure of human populations.
