A chromosome contains one long DNA strand.
B.
Enzymes are meant to break down food in the mouth making it easier to consume and the food and gather the nutrients inside
The muscle system for a boy and a girl are the same. They can perform and respond in the same manner. The difference only occurs in the development of muscle mass, where men can develop more muscle mass than female. This difference is brought by the type of activities that the two sexes engage in. Muscle group development can be altered by a person’s current exercise program and way of life.
