Answer:
Together,the number of protons and the number of neutrons determine an elements isotopes have slightly different mass numbers, the atomic mass is calculated by obtaining the mean of the mass numbers for its isotopes.
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False because deciduous forests are located primarily in the eastern half of the United States,Canada<span>, Europe, parts of </span>Russia<span>, </span>China<span>, and </span>Japan<span>.</span>
D) ATP
Adenosine triphosphate (ATP) is known to be a complex organic compound that functions by providing energy to drive many biological processes in living cells. The building blocks of ATP is made up of Adenine, ribose sugar and three molecules of phosphate group. Furthermore, ATP is a molecular unit currency of intracellular energy transfer and large amount of energy is released during its hydrolysis.
This is extremely vague, but assuming this is regarding concentration gradient in the nervous system, the Sodium-Potassium pump is responsible for transporting sodium and potassium.