Over the Course of Evolutionary Time, Animal Body Sizes Have

Multiple Choice

Over the course of evolutionary time, animal body sizes have gotten larger, yet cell sizes have not. Cells have stayed proportionally the same size to remain efficient, because

A) if cells got larger, the demand for energy and raw materials would greatly decrease.
B) larger cells would become limited by the ability to move materials across the plasma membrane.
C) of limitations of the composition of the plasma membrane.
D) of the inability of the nucleus to produce sufficient DNA for larger cells.
E) the Golgi apparatus would not be able to meet the demands of cell transport of larger cells.