Why does Hilary keep agreeing to baby-sit for the Mitchells, even though she feels uncomfortable there? Include specific words and phrases from the story to support your answer.

If the dimensions of a cube-shaped cell with a length,height, and width of 1 micrometer were to double, what would be the cell's new ratio of surface area to volume? a.3 to 1 b.4 to 3 c.1 to 2 d1 to 6

Which of the following requires the use of energy and the of transport proteins to move a molecule across a cell membrane?

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