It's is used by putting the lager chromosomes on the bottom and the smaller ones on the top so when they get DNA sample of something they can she if some thing is closely related or not
The central nervous system includes the brain and spinal cord.
Marshmallows are probably so delicious because of several important factors. They are fluffy, soft, and oh-so sweet. They melt in your mouth and taste absolutely heavenly with chocolate and graham crackers. Or throw a couple in your hot chocolate. There's no wrong way to eat them and they're pretty cheap too.