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Answer:
D. vacuole
Explanation:
A vacuole holds water, food, waste, nutrients, proteins, and carbohydrates. It also removes harmful things that can damage cells.
Answer:
6m ramp
Explanation:
I'm assuming you need the ramp which will make it the easiest which would be the 6m ramp because since it is longer it will be a more gradual incline making it easier to move the boxes.