Such organisms are called carnivores
The cell membrane has selective permeability and chooses which to pass through. Non polar molecules can pass easily with diffusion, but ions cannot.
Answer:
The AB blood type is one that, according to the blood type classification, does not have Anti-A or Anti-B antigens in its cells, with which, in short, it is constituted as the only blood type that is a universal receptor in case you need a transfusion, since you can receive blood from people with blood type 0, A, B or the same AB.
it is a producer the bottom of the food chain and it is responsible for feeding the smaller fish through making its energy by photosythesis so yes its a producer
