Lifting a weight 10 times is a kind of ISOTONIC contraction. Holding a heavy machine part steady while securing it in place may be categorized as ISOMETRIC contraction. Lifting heavy cans and putting them on a shelf may be called an ISOTONIC contraction. Flexing your leg muscles and holding the flex is an ISOMETRIC contraction. Lifting your heavy book bag several times is good ISOTONIC contraction.
Nerves. The brain and spinal cord are part of the CENTRAL nervous system, and the kidneys are part of the renal system.
Lol id say all above but................its more difficult 2 exercise with all that weight pullin you donw.
Answer:
make crime legal so crime rates drop to 0%
Explanation:
Just trust me on this one
