A Human Is A Complex Organism

Human beings are complex and special organisms as there is a complex organisation of cells in the pitying body. The organisation in the human body is summa splayd as follows Cells Tissues Organs Systems Organism.The same type of cells which carry by a specific function are coordinate into a tissue. For example, a group of nerve cells form a nerve tissue. They are nonionised to tap together to perform specific functions as the result of cells in the human body do not work individually.An organ is a group of tissue that cooperates to carry aside a specific sustenance process. For examples, epithelial tissues form blood vessels. Several organs are coordinate into a system.Each system consist of several organs which are organised to carry out life processes such as respiration, reproduction and digestion.Various systems in the human body are well organised to carry out all the life processes efficiently. They are able to function because the cellular components work together to ensure the survival of human beings.The human brain is well developed to integrate informations and store them as memory. This allows human beings to have the efficacy to talk, think rationally, create new things, learn from experience and use languages. The tycoon to do all these makes us really special compared to other organism.Water is goaded into the tanks to raise density and allow the submarine to sink and it also manage out to reduce density and hence allow the submarine to float. The tanks support be filled with water and air, which allows the submarine to sink or rise in the water. When a submarine is floating, its ballast tanks are filled with air, which makes it little dense than the sea water it displaces hence allowing it to float. Submarines sink when water is allow into the ballast tank. This is because the submarines density becomes greater than that of the surrounding water, resulting in negative perkiness and causing it to sink.