Question

An amoeba cell is a unicellular way is the cell regarded as a living unit

Answer 1

So , cell is the basic structural unit for all unicellular and multicellular organisms. In every cell some basic life process or functions such as digestion , respiration , excretion, etc takes place to keep the organism alive. So ,the cells are called functional unit of life .

Answer 2

the cell is regarded as a living unit as it performs all basic logics of survival . namely
1- homeostasis
2- growth
3-reproduction
4-nutrition
an amoeba performs all these so it is regarded as a living unit