How can mutations impact genetic variation? ?

The random changes a mutation causes to an organisms genetic code causes either1. A different protein to be produced or2. none at allMutations can either have a positive, negative or neutral (the vast majority) effect on the organism. (many times whether they are harmful or helpful depends on the environment.)When a mutation makes an organism better able to survive that organism is more likely to survive and pass the mutated gene onto the next generation.

Well, both latitude and intensity of light affect temperature because, the higher the light intensity, the higher the temperature and since latitude is the measure of how close you are to the equator, then the closer to the equator you are, the higher the temperature is.