Natural selection can only occur because of a variety in a population. Natural selection refers to environmental factors that affect a population and causes some of the population to have more surviving offspring than others. An example is a giraffe with a longer neck will be more likely to survive and reproduce (as it can gather more food from taller trees)
The answer is A. Chlorophyll
Answer:
if the experiment continued under the same conditions
Explanation:
you can only go on to prove something if its under the same conditions
