What layer of the retina stores for vitamin A for rods?

What are the probable phenotypes of their offspring

The carbon cycle is best defined as a process in which a. carbon changes from inorganic forms to organic forms and back b. carbon is changed into other elements such as oxygen or nitrogen c. carbon is continually created from the sun’s energy by plants d. carbon is consumed and regenerated from other elements such as oxygen and nitrogen

In the respiration-photosynthesis cycle shown above, what are the products of cellular respiration that belong in box 2?