Robert hook discovered cells when viewing a under a microscope. box blood cork plant

Cork. Hook was the first to discover cells. Using a primitive microscope, he observed thin slices of cork tissue. He named the structure "cells" because the shape of cells reminded him of monk monasteries.

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