omnivore⇒herbivore⇒autotroph
this is because an autotroph makes its own food (photosynthesis) so it doesn't have the need to eat other organisms. Herbivores eat only plans (remember this with the word herb is a type of plant) and an omnivore will eat either meat or plants so it can eat either of the things below it.
Cell membrane is the answe
To give him low cholestrol and low fat diet