Laura pushes on the pedals of her bike with a force of 320 n. if the bike has an output force of 640 n, what is the mechanical advantage of this bike?

The transport tubes from food came down the plant are called?

(6.02 mc)what affect do marine protected areas have on environmental quality? they increase environmental quality by preventing resource overuse. they increase environmental quality by adding new species. they decrease environmental quality by removing all human activity. they decrease environmental quality by adding recycling facilities.

Which characteristic should describe all evidence collected by a scientist? true obvious objective subjective