Which describes the principle of superposition? A) All the rock layers are the same age.
B) Older rock layers are at the bottom, and younger layers are at the top.
C) The rock layers alternate every other layer between younger and older.
D) Younger rock layers are at the bottom and older layers are at the top.

What type of genetic drift would be simulated if all the beans that were not selected died out?

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.

What happens when water’s salinity increases? mass decreases. freezing point decreases. buoyancy of objects decreases. the amount of dissolved minerals decreases.