Answer:
Myasthenia gravis is considered to be an autoimmune disorder. In an autoimmune disease, your immune system mistakes a part of your own body as foreign, resulting in its destruction. In the case of myasthenia gravis, your immune system targets the acetylcholine receptors that your muscles need in order to contract.
Explanation:
There are critical periods for a child's brain development.
C and maybe A. C for sure. If you can choose multiple answers, go with both
1. I personally (Average teen) use social media about 3-4 hours a day. I spend most of my time online watching You tube videos, this app and snap chatting my friends.
2. I don't think me being on social media has a influence on me because I know my limits and I know that life is not revolved around social media and you can do other activities besides being on your phone all day. (Sports, music, arts, etc.)
3. I think the positive side of me using social media is I can connect with my friends and family, and keep up with that is going on in the world. However, many many people are affected by bullying online, which is a negative thing that should never happen.
4. I think I spend a reasonable amount of time on social media, considering most of it is for school or educational purposes.
Sorry for the long reply, but hope you can get some inspiration from this :)
Men only have one of each type of chromosome - XY - while women have two X chromosomes so they have a chance of having one chromosome overpower the disorder with a healthy set of DNA.