12) If you threw a ball on Earth, would its path go straight or curve? Why? 13. If you threw a ball in space, would it’s path go straight or curve, why?

straight if no force is present.

Einstein's analysis of the falling ball starts with the same premise as Newton's: The ball's trajectory through spacetime will be straight if and only if no force is present.

I hope this helps a little bit

genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).

looks like the answer is     c     to me!