<span>In the beginning, the body used up the ATP energy in muscles to support the enduring muscle contraction. Once the ATP is finished, the body had to switch to lactic acid fermentation in order to support a continued muscle contraction.</span>
C. In radiometric dating, scientists place samples of a fossil in certain liquids until the samples dissolve. The rate at which they dissolve indicates the age of the fossil.
The nucleus of atoms are comprised of protons and neutrons.
It should just be the cell membrane, which regulates what comes into the cell and what leaves it.
