Determine what kind of variation is related to the following trait: Skin color. A. Only Environmental variation
B. Only Genetics
C. Neither
D. Both Genetics and the Environment

atp is used for energy.

1. efficient use of space

2. elimination of groundwater contamination

3. energy generation

4. lower carbon footprint

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photosynthesis makes the glucose that is used in cellular respiration to make atp. the glucose is then turned back into carbon dioxide, which is used in photosynthesis. while water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.