Nitrogen and Oxygen make up the greatest percentage of the atmosphere.
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Answer:
Cellular respiration that proceeds in the absence of oxygen is anaerobic respiration. Cellular respiration that proceeds in the presence of oxygen is aerobic respiration.
Fluke don't contain bones, while fins do. Flukes go fast while fins steer. Flukes also manage temperature control.
Answer: Option 1
Explanation: because I did it on my test and got it right