The difference between the two students that we know of is that they used a different meter stick. So the difference would be best attributed to the different tools they used.
Note, this is quite a huge difference. It's likely that one of the sticks, or both, are quite defect.
Answer:
an energy source during cellular respiration
Cytokinesis, which occurs at the end of Telophase in the process of Mitosis in Eukaryotic cells.
*Binary Fission occurs in Prokaryotes
D. lack of water because plant need water to survive