1. Why do you think car crash fatalities (deaths) have decreased since 1950?​

hi here is your answer hope it helps

Explanation:

There were 33,186 deaths on U.S. roads in 1950. The decline in fatalities occurred despite a slight increase in the number of miles actually driven.

beacuse people now wear their seat belts and bc we now have stop signs

the oxygenated blood then leaves the lungs through pulmonary veins, which return it to the left heart, completing the pulmonary cycle. this blood then enters the left atrium, which pumps it through the mitral valve into the left ventricle. from the left ventricle, the blood passes through the aortic valve to the aorta.

deoxygenated blood leaves through the right ventricle through the pulmonary artery. from the right atrium, the blood is pumped through the tricuspid valve (or right atrioventricular valve), into the right ventricle.

after making a punnet square using bv bv bv bv you will find that the ratio will be 9: 7 or a 128.6% probability.

hope this