The lens helps the eye to focus on images.
"The Lens. The lens is composed of transparent, flexible tissue and is located directly behind the iris and the pupil. It is the second part of your eye, after the cornea, that helps to focus light and images on your retina."
Answer:
Formal operations
Explanation:
During formal operational stage adolescents<em> gain the ability of abstract thinking and its application, they can manipulate ideas in their heads without any dependance, they also begin to think creatively and can do mathematical calculations.</em>
I hope you find this information useful and interesting! Good luck!
If I had to pick one I would say that it would be because it can extend a joint beyond its regular range of motion.
Keep your mind calm and not worry about the issues that you are not mainly involved with. it helps to just walk and exercise to take your mind off everything