Some organisms perform photosynthesis to produce energy .other organisms cannot do photosynthesis. what can they do in order to generate energy

They can eat plants and other animals in order to gain energy.

Can you put the picture?

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