5. Explain the process through which natural selection can lead to a new species of organism.

Through this process of natural selection, favorable traits are transmitted through generations. Natural selection can lead to specistion, where one species gives rise to a new and distincly different species.

i'm thinking (a) to keep sand in place; ////////////

explanation: a sand fence or sandbreak, like a snow fence, is used to force windblown, drifting sand to accumulate in a desired place. sand fences are employed to control erosion, sand dune stabilization, keep sand off roadways, and to recruit new material in desert areas.