Angiosperms produce seeds inside protective structures called

Ais a group of individuals of the same that exist together in the same place at the same time

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

Which two criteria must be met before scientist can use radiocarbon dating? explain your answer