Why are groups of small cells better than one large cell at moving material in
and out?
O
A. They have a lower surface-to-volume ratio.
O
B. They have a greater surface-to-volume ratio.
WO C. They have a smaller volume.
O
D. They have more cell structures.

The surface area--to-volume ratio makes the small cells more efficient, not the rate of diffusion. Smaller cells, with a larger surface area--to--volume ratio, are more efficient for diffusing materials in and out because, as a cell grows, the volume grows faster than the surface area.

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Why are groups of small cells better than one large cell at moving material in and out? O A. They have a lower surface-to-volume ratio. O B. They have a greater surface-to-volume ratio. WO C. They have a smaller volume. O D. They have more cell structures.

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Why are groups of small cells better than one large cell at moving material in
and out?
O
A. They have a lower surface-to-volume ratio.
O
B. They have a greater surface-to-volume ratio.
WO C. They have a smaller volume.
O
D. They have more cell structures.