Distinguishes amino acids from one another
67.24 million miles. Hope this helps.
Blood is the fuel that keeps you going! Oxygenated blood is brought to organs and tissues via the arteries, while veins bring deoxygenated blood back to the heart to be replenished. The point is, without the respiratory system your blood would be useless.
The circulatory and respiratory systems work together to circulate blood and oxygen throughout the body. Air moves in and out of the lungs through the trachea, bronchi, and bronchioles. Blood moves in and out of the lungs through the pulmonary arteries and veins that connect to the heart.
The answer to this should be C, partial positive and negative charge. This should be the answer because the unequal sharing of electrons gives the water molecule a slight negative charge near its oxygen atom and a slightly positive charge near its hydrogen atoms.
Hope this helped :)
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