Wanted : Amoeba
Amoeba feeds on metozoa, protozoa, plant cells, bacteria and other microorganisms.
✴Amoeba does not have stomach. As such, the digestion of the food takes place in a number of vacuoles inside the cell. Certain vacuoles also perform the function of excretion by eliminating waste from the cell.
✴When the amoeba eats its prey, the prey remains alive inside the amoeba for some time.
✴The amoeba wards off predators and other amoebas by secreting a chemical.