What are the four groups macromolecules and what are their jobs in the cell?

Which conditions are necessary for natural selection to occur? select all of the answers that apply. a. inheritable adaptations vary among individuals. b. the population size is increasing. c. more individuals are born than can survive. d. fitness varies among individuals. e. the environment changes suddenly and drastically.

If vegetable oil is made out of veggies, then what is baby oil made out of?

Heat from earths interior and pressure from overlying rock transform the remains of marine sediments into