Please these points are for my two friends please don't answer am helping them out they need the points

after am done giving away points to you guys

Needed fast 15 points the process of natural selection favors certain characteristics in organisms, while it selects against other characteristics. what would happen if there was zero variation between all of the organisms on earth? a. organisms would evolve to increase variety b. natural selection would operate faster c. less food would be available d. evolution through natural selection would not occur

Reason i shouldnt turn back if i'm lost in the wilderness need fast

Where does the availability of water pose the greatest problem