Why are proteolytic enzymes produced in an inactive form?

Why did rutherford say that bombarding atoms with particles was like "playing with marbles" what

Penelope studies how the structure and function of the nervous system is related to behavior. she is a psychologist

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.