In relation to natural gas, where is crude oil generally found? a. crude oil is found above natural gas reservoirs. b. crude oil is found next to natural gas reservoirs. c. crude oil is found below natural gas reservoirs. d. crude oil is mixed in with natural gas reservoirs.

Astudent analyzed ears of corn that demonstrated two traits in the f2 kernels, purple or white colors and smooth on wrinkled shapes. a tabulation of 135 individual kernels gave the following results: purple and smooth = 75 white and smooth = 28 purple and wrinkled = 24 white and wrinkled = 8 what would be the only phenotype present in the f1 ger

What is true of all organisms in the kingdoms protista, plantae, fungi, and animalia? a. they are multi-celled. b. they are photosynthetic. c. they have cells that contain membrane-bound organelles. d. they contain cells that lack membrane-bound organelles.

In general, characteristics that an organism survive and reproduce become more common over time. what mechanism of evolution causes this?