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Genetic variation happens when one organism in the population mates with a genetically different organism. Same species, different genetics such as color or height/weight.
Jet airplanes take up a lot of fuel and money. Not only are they burning fossil fuels quickly, but they're also being flown on a basis. Planes are sent out constantly, and the amount of carbon it releases into the atmosphere is incredibly dangerous.
Answer:
B
Explanation:
The Krebs cycle fuels the production of ATP, aka energy. Hope I helped :)
