Glycogen in is broken down and released into blood when blood glucose is low. a. the liver b. muscle c. the small intestine d. the liver and muscle

Which are forms of nitrogen that are usable by humans

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.

The leopard frog and the pickerel frog are two closely related species. in areas where their ranges overlap, the frogs will remain separate species if they