HELP PLEASE 6. Why do leaves tend to be flat?

A. so that water can easily be absorbed and carried to the rest of the plant

B. so that sunlight can easily penetrate to the leaf's photosynthetic tissues

C. so that nutrients can easily enter the plant and be used for structure and support

D. so that plants can easily find balance due to the symmetrical nature of their branches

Explanation is in the file

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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.

after making a punnet square using bv bv bv bv you will find that the ratio will be 9: 7 or a 128.6% probability.

hope this