Need ! will mark ! which event occurs after erosion of earth’s surface? a. surface material breaks down into smaller pieces. b. very dense particles settle faster than low-density particles. c. large particles are carried away to a new location by ice and glaciers. d. round particles form new landforms more slowly than flat particles do.

Why does meiosis produce cells with half the chromosomes? o a. most of the chromosomes are not necessary to keep an organism alive. b. a gamete needs only half the number of chromosomes because two gametes join together. o c. it makes the gametes easier to move around in the organism. o d. it is faster to produce gametes with fewer chromosomes.

Factors that can increase mutation rates a. high temps b. low temps c. food additives d. uv rays

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.