Which of the following is an example of a group behavior that enhances survival? Please Select all that apply.

O male peacocks attracting females with a colorful tail

O Schooling in fish

O an opossum playing dead to escape a predator

O lions hunting in packs

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.