Explanation

The mode of nutrition in $Amoeba$ is holozoic and involves the following processes: (a) Phagocytosis, $i.e.,$ intake of food in solid form. (b) Pinocytosis, $i.e.,$ intake of food in liquid or solution form. (c) Exocytosis, $i.e.,$ egestion of residual undigested food. Figure in the question shows all the three process stated above.