Which phrases describe air density? check all that apply

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

In the diagram below dab and dac are adjacent angles

Democratic vs democratic whats the difference? ?