Which of the following affects the speed of a planet's revolution? shape of the planet gravity of the sun temperature of the sun atmosphere of the planet

I would say B) because the rest dosnt quite make sense to me and A) the  gravity of the sun would still be the same despite the shape if we have an triangle block and  an sphere then drop the they are going to drop at the same speed the gravity is not going to sphere is not going to fall faster 

Amutation is basically the change in the gene, caused by alteration of single based units in the dna, or the genes or chromosomes were rearranged in the dna

There are four nitrogenous bases that make up dna. the two pyramidines are thymine and cytosine. the two purines are adenine and guanine. these bases pair in a very specific way. adenine - thymineguanine - cytosine i remember it like this: a tall, good cat.