Macrophages are an important part of the immune system. A macrophage released signaling molecules that bound to receptors on the macrophage’s surface. This interaction activated the microphage further and caused it to produce proteins that regulate immune responses. What type of cell communication was involved in the scenario? Explain your answer.

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.