Question

what is cell? Difference Between unicellular and multicellular organisms.​

Answer 1

Answer:

the structural and functional units of life is called cell

unicellular organisms are single celled ex- bacteria, paramecium etc

multicellular organism have more than one cell ex- fungi ,plants and animals

Answer 2

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➝ A cell is the structural or functional unit of life.All cells are similar in their basic structure and functions but are not identical.They differ in size and structure.

✪ Unicellular organisms :-

➝ They have a single cell.

➝ The size of cell is small (1-5 μm)

➝ A singl cell is capabale of performing all the life processes.

➝ Cell division occurs by fission or budding.

➝ Their life span is very short.

➝ Any injury to a cell can cause the death of an organism.

✪ Multicellular organism :-

➝ They consists of many cells.

➝ The size of cell is large (5-100 μm)

➝ A single cell carries out one or few process.

➝ Cell division occurs by mitosis or meiosis while the other cells remain intact.

➝ Their life span is very long.

➝ Injury or damage to some cells do not affect the organism as the affected cells are replaced with the new ones.