What is the main function of Schwann Cells? A. increase the speed of nerve impulses

B. improve the accuracy of nerve impulses

C. increase the strength of nerve impulses

D. communicate with other cells

Which type of organism is missing from the food web seen in the illustration? primary consumers decomposers primary producers secondary consumers

When coal has reached it hardest, darkest form, it is called select one: 0 a. sub-bituminous b. lignite c. bituminous d. antrhacite next page

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.