What tends to increase genetic variation in a population a bottlenecks b disruptive selection c mutation d selective pressures

Asap! how does the distance between two objects affect the force of gravity? how is the moon dependent on the sun?

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.

Which of the following types of stars are dim but can have high surface temperatures? giants main sequence stars supergiants dwarfs