The surface winds of the earth have both a North/South and East/West component (i.e. they move diagonally across the globe). ____ determines the N/S direction and ____ determines the E/W direction. A the coriolis effect, convection cells, B. Convection cells convection cells, c. convection cells, the coriolis effect D. The coriolis effect, the coriolis effect To understand the effect of an introduced species on existing species in an area, what ecological level