Which of the following is not a part of Cell Theory? a. Plant cells are the only cell that are a part of the Theory.

b. Cells are the basic unit of structure and function in living cells.

c. New cell come from existing cells.

d. All living things are made up of one or more cells.

a.Plant cells are the only cell that are part of the cell theory

Explanation:

all cells are part of the cell theory. despite what kind they are

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.

i think the answer is b.