Explanation:
Circumfluence in Amoeba is a method of foot ingestion. It is a process by which the amoeba engulfs its food by forming pseudopodia around it and then taking it into its body.

Amoeba:
Amoeba is a single-celled organism that belongs to the group of protozoans. It is found in freshwater bodies and moist soil. Amoebas have a unique way of obtaining food. They use pseudopodia, which are temporary extensions of their cell membrane and cytoplasm, to capture and ingest food particles.

Method of Foot Ingestion:
The process of foot ingestion in amoeba involves the following steps:

1. Pseudopodia Formation: When an amoeba encounters a food particle, it extends its cytoplasm to form finger-like projections called pseudopodia. These pseudopodia are temporary and can be formed in any direction.

2. Enclosure of Food Particle: The pseudopodia surround the food particle, enclosing it within a temporary food vacuole. The pseudopodia fuse together, forming a complete enclosure around the food particle.

3. Ingestion of Food Particle: The enclosed food particle is taken into the amoeba's body by the process of endocytosis. The food vacuole containing the ingested particle is formed by the fusion of the pseudopodia.

4. Formation of Food Vacuole: Once inside the amoeba's body, the food vacuole fuses with lysosomes, which are specialized organelles containing digestive enzymes. The enzymes break down the food particle into simpler substances that can be absorbed and utilized by the amoeba.

5. Excretion of Undigested Material: After digestion, the waste material or undigested remains are eliminated from the amoeba's body through a process called exocytosis. The undigested material is expelled from the cell through the cell membrane.

Conclusion:
Circumfluence in amoeba refers to the method of foot ingestion, where the amoeba surrounds its food particle with pseudopodia, forms a temporary food vacuole, and ingests the food through endocytosis. This process allows amoeba to obtain nutrients and energy for its survival.