Would itA rift valley will form in the Mediterranean Sea The Black Sea will gradually close up
The Mediterranean Sea will gradually close up
The Mediterranean Sea will gradually widen

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.

Give two examples of what would occur if one of the pairs did not match or had an extra chromosomes. explain how this might occur, and if it would be dangerous to the individual. fast.

What is the most common structure of volcanoes?