Introduction:
Amoeba is a unicellular organism that belongs to the kingdom Protista. It has a unique mode of nutrition called phagocytosis.

Process of nutrition:
The process of nutrition in amoeba involves the following steps:

1. Formation of pseudopodia: Amoeba extends its pseudopodia to capture its food.

2. Enclosure of food: The pseudopodia surround the food particle and form a food vacuole around it.

3. Digestion of food: The lysosomes in the cytoplasm of amoeba release digestive enzymes into the food vacuole. These enzymes break down the food particles into simpler substances.

4. Absorption of nutrients: The digested food is absorbed through the membrane of the food vacuole and enters the cytoplasm of amoeba.

5. Egestion of waste: The undigested waste material is expelled from the body through the anal pore.

Mode of nutrition:
The mode of nutrition in amoeba is holozoic. Holozoic nutrition involves the ingestion of solid food particles which are then digested and absorbed.

Conclusion:
In conclusion, amoeba has a unique mode of nutrition called phagocytosis which involves the ingestion of solid food particles. This allows the organism to obtain the necessary nutrients to sustain its life.