Answer: In cells, chemical energy is gradually released in a series of chemical reactions that are assisted by enzymes. ATP--when cells break down food molecules, some of the energy on the molecules is released as heat. Cells use much of the remaining energy to make ATP.
website: Explanation: http://www.wctech.org/www.wctech.org › wcts › Staff › chapter 9 photosynthesis & cellular res..
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They can also merge in what’s known as an occluded front, an important stage in the development of many of the great weather-making low-pressure systems known as midlatitude cyclones.
the letter B. that is the answer