Question

How is food ingested in a unicellular organisms like Hydra and Paramoecium?

Answer 1

Answer:

In unicellular organisms, the food is taken by the entire surface. Amoeba is a unicellular organism which takes in food using temporary finger-like projections of the cell which fuse over the food particle to form a food vacuole and the food is broken down inside the food vacuole and diffuse into the cytoplasm.