Similarity- both of them do ingestion and egestion. difference - the whole process of digestion in human being is done in different body parts whereas the whole process of digestion in amoeba is done only in food vacuole . please upvote

Similarity:

Both amoeba and human beings require nutrients for their survival and growth.

Difference:

The nutrition process in amoeba and human beings differs in terms of the mode of ingestion, digestion, and absorption.

Mode of Ingestion:
- Amoeba: Amoeba is a unicellular organism that captures its food through a process called phagocytosis. It extends its pseudopodia around the food particle and engulfs it into a food vacuole formed within its cytoplasm.
- Human Beings: Human beings are multicellular organisms that ingest food through the mouth. The food is broken down into smaller particles through chewing and mixed with saliva.

Digestion:
- Amoeba: In amoeba, digestion takes place within the food vacuole. The food vacuole contains digestive enzymes that break down the ingested food into smaller molecules.
- Human Beings: In human beings, digestion starts in the mouth with the help of salivary amylase. It then continues in the stomach with the action of gastric juices, and finally, the majority of digestion occurs in the small intestine with the help of pancreatic and intestinal enzymes.

Absorption:
- Amoeba: Amoeba absorbs the digested food directly through its cell membrane. The nutrients pass into the cytoplasm and are utilized for various metabolic processes.
- Human Beings: In human beings, the digested food is absorbed in the small intestine. The inner lining of the small intestine has numerous finger-like projections called villi, which increase the surface area for absorption. The nutrients are absorbed into the bloodstream through the villi and transported to various cells and tissues.

Conclusion:

In conclusion, while both amoeba and human beings require nutrients for their survival, the mode of ingestion, digestion, and absorption differ significantly between the two. Amoeba ingests food through phagocytosis, digests it within the food vacuole, and absorbs nutrients directly through its cell membrane. On the other hand, human beings ingest food through the mouth, digest it in the mouth, stomach, and small intestine, and absorb nutrients through the villi in the small intestine.