Why don’t people eat things with very high levels of cellulose?

people cannot digest cellulose.
foods high in cellulose are expensive.
foods with high levels of cellulose are difficult to find.
cellulose is only food for cells.

Can bacteria reproduce in a way such that when you start out with two bacteria, you get five bacteria? why or why not? * a. yes, because bacteria reproduce sexually, and can produce any number of offspring, just as humans do. b. no, because bacteria grow at an exponential rate. c. no, because when bacteria reproduce, they split into two parts, and two bacteria splitting would result in four bacteria.