If a man has eyes that are shorter than normal, how is his vision affected and how can it be corrected?

Assume you were going to teach this information to a group of seventh graders. pick a title for your presentation that would make the seventh graders want to listen to you.

In which way does nicotine cause addiction? by stimulating the brain's pleasure center by increasing blood-sugar levels by decreasing dopamine levels by reducing depression and anxiety

Which two levels of the spine that can undergo flexion and extension?