B. positive because y increases as x does. It it were negative y would decrease as x increases and it would be 0 if y stayed the same as x increases.
Natural selection requires variation between individuals. Mutations and reproduction increase genetic variation in a population. Natural selection occurs when environmental pressures favor certain traits that are passed on to offspring.
Mixture/ compound
hope this helps
Answer:
i think it was lll,lV ㄸㄸㅇㅊㅎㅍㅋ
