C preserved bone because none of the others were enough
The right ventricle pumps the oxygen-poor blood to the lungs through the pulmonary valve. The left atrium receives oxygen-rich blood from the lungs and pumps it to the left ventricle through the mitral valve. The left ventricle pumps the oxygen-rich blood through the aortic valve out to the rest of the body.
It is called ACCOMMODATION. Accommodation refers to the mechanism by which the eye adjusts his optical power in order to focus properly on an object as the distance of the object varies. To achieve this, the shape of the lens has to be adjusted appropriately.
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Explanation:</h2><h2 /><h3>There is empirical evidence that environmental injustice is caused by many factors, including discriminatory siting, misguided regulatory policy, unequal regulation enforcement, and unequal political power.</h3>