There is a large number of mitochondria in cardiac muscle cells because cardiac muscles need the mitochondria to
work harder and longer.
maintain their shape.
maintain their color.
be attached to the ribs.

Which is a direct benefit of prohibiting nicotine and tabacco use in schools?

Define physical activity. question 3 options: bodily movement produced by the contraction of muscles planned and structured exercise the ability to perform rigorous activity all the above

Ruth is 44 years old. at her medical checkup, her doctor notices that ruth's lymph nodes are enlarged. after some blood tests and a ct scan, ruth's doctor diagnoses her with ( ) , a cancer that typically starts in the lymphocytes and can spread to the bone marrow.