Not sure if you have any choices to give us, but I'm going to say:
Flexing or Flexion. :)
I'd say probably C
Hope this helps!
I think that radon testing in schools are important. Especially since you could develop lung cancer and it isnt able to be seen or smelt.
The lens focuses light through the vitreous humor, a clear gel-like substance that fills the back of the eye and supports the retina. The retina receives the image that the cornea focuses through theeye's internal lens and transforms this image into electrical impulses that are carried by theoptic nerve to the brain.
