Laura's thr zone is 125bpm-- 158bpm. maddison's thr zone is 121bpm-- 150bpm. they finish a long tennis rally and take their pulse, and count the heart rate at 156bpm. who must decrease her heart rate to remain in her thr zone? a) laura b) madison c) both madison and laura d) neither

What is the function of the retina?

Which of the following represents the results of a review of well-controlled studies of vitamin c supplementation on the resistance to, and recovery from, colds? there was a reduction in the duration of colds by 50% on the average. there was a slight effect on reducing the duration and severity of colds for people taking vitamin c supplements. there was a significant reduction in the duration of colds in people who consumed at least one gram a day. there was a significant reduction in the number of colds only in people who consumed > three grams per day.

Viruses ) manufacture their own atp, proteins, and nucleic acidsb) use the host cell to copy themselves and make viral proteinsc) use the host cell to copy themselves and then viruses synthesize their own proteinsd) metabolize food and produce their own atp