Define cell and atom bored​

I won't define my wish my life XD I just knew this answer

Explanation:

a few days ago lol

The fundamental, structural, at the unit of life is called Cell.

The smallest part of an element which can take part in chemical reactions is called Atom.

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answer; (phospholipid);

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.