Did the "then” part of your hypothesis have the
conclusion that the plant growth will be greater?
eit
did the "because" part of your hypothesis
mention that worms decompose and
distribute organic matter through the soil in a
form plants can use?
done

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 answer is b. glad to .