Cell Theory

1. In biology, cell theory is a scientific theory which describes the properties of cells. These cells are the basic unit of structure in all organisms and also the basic unit of reproduction.


  1. Multicellular organisms are organisms that consist of more than one cell, in contrast to single-celled organisms. Few unicellular species can be seen individually with the naked eye.

Unicellular Organism

A unicellular organism, also known as a single-celled organism, is an organism that consists of only one cell, unlike a multicellular organism that consists of multiple cells.