EVERYDAY SCIENCE

Detailed explanation-1: -Division of labour is at the organelle level. It gives a low level of operation efficiency. Division of labour may be at cellular, tissue, organ and organ system level. It gives high degree of operational efficiency.

Detailed explanation-2: -These single cells are known as unicellular organisms. All the life processes in a unicellular organism, including digestion, excretion, and respiration, occur within a single cell. So, there is no division of labour in unicellular organisms.

Detailed explanation-3: -’Division of labour’ is a term that describes the specialised functions of cell organelles which come together to ensure the cell is capable of surviving as well as performing it’s role in the body. For example, beta cells in the pancreas are responsible for releasing insulin into the bloodstream.

Detailed explanation-4: -Hence, a particular function is carried out by a group of cells at a definite place in the body. Similarly, different functions are carried out by different groups of cells in an organism. This is known as the division of labor in multicellular organisms.

Detailed explanation-5: -As a tissue, a group of cells performs a particular function. In the same way, different functions are carried out by different groups of cells, which is known as the division of labour in multicellular organisms.