One organism surviving over another is a display of what evolutionary principle? please actually help no links or bots please and thank you

Describe speciation of the galapagos island finches in terms of geographic isolation

Ascientist wants to determine the effect of a new type of gasoline. he fillsone car with normal gasoline and another identical car with the new gasoline.which is the control group? a. the new type of gasolineb. the car with the normal gasolinec. the car with the new gasolinethe amount of gasoline usedd. the amount of gasoline used

Based on the topographic map of mt. st. helens, what is the contour interval of the volcano about height is 2,950 m?