In the context of vision the blind spot is a. an area of the retina where there are no rods or cones b. a nontransparent areas on cornea c. a nontransparent area on the lens d. an area of the retina where rods and cones are concentrated

In the context of vision the blind spot is an area of the retina where there are no rods or cones. the correct option among all the options that are given in the question is the first option or option "A". The other choices can be neglected. i hope that this is the answer that has actually come to your help.

That is true tge cactus as a structural adaptation to its envirinment has it leaves reduced to spines. but this doesnt mean it cant produce food it produces food because of the presence of chlorophyll in its stem