Cells are small because they can absorb nutrients much more efficiently. Because they are smaller they can efficiently absorb enough food. ... When a cell doubles in size the volume increases much more then the surface area, which is why large cells cannot receive enough food efficiently for their volume.
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SOLAR, ENERGY CAN BE USED DIRECTLY TO HEAT SPACE, OR IT CAN BE CONVERTED TO ELECTRICITY ..
Draw a model of a grey and black color mutilation in the seven and
