The Beauty of Nature

Level of Organization

We know that multicellular organisms are made up of millions of cells. Most of these cells are specialized to carry out a few functions. 

Cells are the building blocks of life. They are the basic structural and functional units from which life takes shape. Cells are the smallest living entities in a living organism. The cells perform functions necessary for the survival of the organism, such as respiration, digestion, excretion, protection from pathogens and so on. each cell performs a specific function in the body. Therefore, cells specializing in one function are often grouped together in the body. This means that a particular function is carried out by a cluster of cells at a definite place in the body. In this way, different functions are performed by different groups of cells in an organism. This constitutes the organization at cellular level.

A group of cells that are similar in structure and are organised together to perform a specific task is known as a tissue.

So, groups of cells make tissues.

What do tissues form together?

A group of tissues are organised to form an organ. Two or more different organs work together in a coordinated manner to form an organ system. Organ systems work together in the body of an organism.

Are plants and animals made up of the same …