1. A student looks at a cell under a microscope. Which of the following observations would indicate that the cell is from a plant rather than an animal? A.

a nucleus located inside of the cell

B.

numerous cilia on the outside of the cell

C.

chloroplasts in the cytoplasm of the cell

D.

a thin membrane around the edge of the cell

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.

the growth of the plants is affected by the heat of the light. what is the student doing?

answer: b

coz red blood cells marrow and circulates the body for 120 days.