Photoreceptors are distributed over the entire neural retina, except where the optic nerve leaves the eyeball. This site is called the .
optic disc
macula
lutea

Which of these statements is true about autotrophs, but not heterotrophs? a. they use sugar and oxygen to make carbon dioxide and water.b. they use chlorophyll and oxygen to make carbon dioxide and water.c. they use sunlight, water, and carbon dioxide to make sugars.d. they use sunlight, water, and oxygen to make chlorophyll.