Which is the function of the fovea?

It controls the amount of light entering the eye.
It provides the greatest detail of an image when light hits it.
It flips the image that is being viewed.
It changes the curvature of the lens to allow less light to enter.

Cancer cells spread to other parts of the body by entering the bloodstream. which of the following organs could prevent a cancer cell in the bloodstream from spreading, and why? a. the spleen, because it releases lymphocytes into the blood b. the peyer's patches, because they release lymphocytes into the blood c. the lymph nodes, because they release lymph into the blood d. the thymus, because it releases lymph into the blood