Benefits of flies laying eggs on open wounds

Johnny rode his bike 4 blicks down the street to his friend's house once he got to his friend house and realized he could not cone out to play he turned aroubd and went back home. what is 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

What is the next step in the process after a substrate enters the active site of an enzyme

This is the process of making a prediction based on the results of prior observations of similar events.