Which of the following is directly affected by the cardiovascular system?

Differences between compact bone and cartilage

The term equestrian relates to which animal? bulls cows horses pigs

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