is a visual pigment that helps transform light energy into a nerve impulse sent to the brain.

What are some characteristics of a free enterprise economy?

Freckles are a dominant trait in humans. both of the girls have the genotype ff for freckles. if either one marries a man with no freckles, what are the chances that their children will have freckles?

Patient has just received an organ transplant which treatment would be most effective in preventing the patient’s body from