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 depends on your body needs, and what your goals are, to build muscles for example or to decrease your cholesterol or weight or increase stability of your energy levels so it varies greatly imo and its better to consult a nutritionist before putting a limit for yourself. personally I'd say between 20-30
The correct answer would be lead paint. Even though there has been a decline in the amount of lead based paint that is used nowadays, still the largest source of lead poisoning in children in America comes from dust and chips from deteriorating lead paint on the inside walls of their homes and schools.
