Energy is said to flow in a “one way stream” through an ecosystem. in your own words, describe what that means.

What is hydroelectric power produced by?

Johnny rode his bike to a friend's house 4 blocks down the street in his neighborhood. he immediately rode back home once he realized his friend was not able to play. what was his displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point

Pl which diagram illustrates prophase?