The troposphere is hotter near the Earth's surface because heat from the Earth warms this air. As the altitude increases the number of air molecules decreases, the average of their kinetic energy decreases.
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Answer:
a. body cells
Explanation:
Body cells are eukaryotic. Eukaryotic cells replicate via mitosis.
Well thats ur opinion some people might not think it is hard
The second one would be my answer but also an answer that is not up there is that during an experiment when repeating the trials you might have to set up a new hypothesis every time and have to review the data several different times because of different results from each trial
hope this helps if not just let me know