In adulthood, approximately 8% of the fat cells die yearly, they are then replace by new ones. The result of this is that adults develop a constant number of fat cells, this applies to those who gain more weight and those who lose masses of weight. What causes the body weight to rise and fall is the volume of fat cells.
Explanation:
The muscles opposing the movement become the antagonists.
In a movement, like the back extension, the muscles that extend the back are the agonist.
The muscles that produce the opposite movement, which is back flexion, are the abdominals.
Answer:
A. Red And White Blood Cells
C. Platelets
D. Plasma
Explanation:
The heart is not a component of the blood but it does pump it. All others options ( R&W Blood Cells, Platelets, & Plasma) are all found inside the blood.
