since each myofibril is attached at either end of the muscle fiber, when sarcomeres shorten, the muscle fiber

Which statements correspond to cellular respiration? co2 diffuses passively into the cell. co2 diffuses passively out of the cell. co2 must be pumped out of the cell. o2 diffuses passively when produced inside the cell. o2 diffuses passively when converted to co2. o2 is pumped in and forces co2 out.

Name one similarity and one difference between the morphology of a brachiopod and a bivalve

Any sound above what db can cause hearing loss in human beings