The carbohydrates seen here contain three common elements. they are a) carbon, hydrogen, and oxygen. b) oxygen, nitrogen, and sulfur. c) hydrogen, oxygen, and nitrogen. d) carbon dioxide, hydrogen, and phosphorus.

Brian has a medical condition called cone dystrophy, which is a disorder of the cone cells in the eye. what symptoms would you expect brian to have? a. inability to see in the dark b. difficulty determining colors c. difficulty determining shapes and outlines d. inability to see in all light conditions