2. sodium ion that has lost an electron
Eukaryotic cells use three major processes to transform the energy held in the chemical bonds of food molecules into more readily usable forms — often energy-rich carrier molecules. Adenosine 5'-triphosphate, or ATP, is the most abundant energy carrier molecule in cells.
Answer:
The anus is an opening at the far-end of the digestive tract and is the exit point for the waste material.
Explanation:
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