Photosynthesis is a processed used by plants and other organisms. Seeds starts off as a little seed that you plant in the ground once that seed grows it will be a plant which is a form of photosynthesis hope this helps C;
The study of one type of evidence of evolution is called embryology, the study of embryos. An embryo is an unborn (or unhatched) animal or human young in its earliest phases
So the answer is basically EMBRYOLOGY
Yes That is true and I’m not too sure what else you could get from it?