EVERYDAY SCIENCE

Detailed explanation-1: -Injury to the cell leads to the death of the cell but, the most important, it never dies because this organism has the ability to regenerate itself so it is immortal (unlimited growth). Multicellular organisms consist of more than one cell.

Detailed explanation-2: -Multicellular organisms thus have the competitive advantages of an increase in size without its limitations. They can have longer lifespans as they can continue living when individual cells die. Multicellularity also permits increasing complexity by allowing differentiation of cell types within one organism.

Detailed explanation-3: -Multicellular organisms are larger, more efficient, and have a longer lifespan than unicellular organisms. Multicellular organisms need more resources than unicellular organisms. The cells are specialized and must depend on each other for survival of the organism.

Detailed explanation-4: -The life span of unicellular organisms is short as compared to the multicellular organisms due to the high workload. Unicellular organisms have low operational efficiency as compared to multicellular species.