Short term effects on the cardiovascular system occur in response to exercise to try to help the body meet the demands of the extra physical work Assess the positive effect of an increase in cardiac output during a football match (3 marks)Immersive Reader

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