The majority of the benefits of exercise during pregnancy occur in the ; the majority of the risks of exercise during pregnancy apply to the .

mother, fetus

Explanation:

There are many benefits associated with exercise to the mother this includes the reduction in back pain, it helps in constipation, promotes healthy weight, improves the fitness of mother and strengthen the heart and also improves the blood vessels by preventing the deposition of fat in them.

There are majority of risks associated with the fetus during pregnancy these includes the premature contraction of the uterus, premature labor and premature birth of the fetus. The overexercise done by mother is likely to affect the growth of the fetus.

answer: a) a compound microscope has a greater magnification ability than a simple microscope.

explanation:

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.