If you want to understand all the numbers I put here on click this link http://www.wilottery.com/scratchgames/detailticket.aspx?xxx=1116 (this is just a sample of how the exercise is supposed to look like). Hope you understand it and thanks in advance for your help.
A)Type $20Scratch
Overall...
It's midnight, and you are alone in you rroom studying. you hear a loud crash outside your room, and your whole body reacts instantly and furiously.
so the system that produces these reactions is
1. central nervous system
2. sympathetic nervous system.
3. Parasympathetic nervous system.
4...