Question 12 (5 points) saved
during a demographic transition, population increases as death rates decrease
before birth rates. explain why this occurs, and provide a possible way to move
through the transition faster and avoid the population increase.

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.

sex cells are usually half's then they find another half and make a fertilize egg

regulate growth

produce insulin

control bladder

regulate bone calcium

control metabolism

produce adrenaline