At the the light rays convert to electronic impulses and the optic nerve transmits them to the brain.

Which nutrient is the most difficult to break down and, thus, is generally used last fro energy in the body? water carbohydrates fats proteins

What are hormones? a. they are minerals needed for proper bone formation. b. they are the parts of the body targeted by endocrine glands. c. they are substances needed for muscle and nerve activity. d. they are substances released by endocrine glands.

Blank is a disease in which the body is unable to make eunough of the hormone insulin to breakdown sugar into energy