1.jack is eating a diet that will him build muscle, so he eats a diet high in this. 2.before a race, ruth drinks a beverage full of this bio molecule to get energy. 3. the molecules in olive oil will ruth’s body store long-term energy. 4.elizabeth has been advised to go for genetic screening to detect any abnormalities in her unborn child. a. nucleic acids b. carbohydrates c. fats d. proteins

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.