PLS ANSWER! I really need help. I'm confused!

Which of the following statements is true about the relationship between genetic variation and natural selection? a. genetic variation must be present in a population before natural selection can act on it. b. genetic variation arises in a population as a result of natural selection. c. natural selection can act on a population whether there is genetic variation within the population or not. d. after natural selection acts on a population, the amount of genetic variation in the population always increases.

Why is the statement not a hypothesis? sunflowers require soil and plenty of sunlight and water to grow and thrive.

Agroup of students want to live a healthier life style they decide to use one of these following vegetable oils for cooking apex