The Human Being—a Complex Organism

BAND 6 PRESENTATION FOR FORM 1 2015

Foo Yeh Li

1.3

21/9/15

B6D2 Realising that humans are complex organisms.

B6D2E1: Discuss why humans are complex organisms in various presentation use any two system in human as the centre of our discussion.Write an essay about 500 words from your discussion.

All the materials needed: none

The Human Being—A Complex Organism

Human beings are complex and special organisms as there is a complex organisation of cells in the human body. The organisation in the human body is summarised as follows: Cells—> Tissues—> Organs—> Systems—> Organism.

 The same type of cells which carry out a specific function are organised into a tissue. For examples, a group of muscle cells form a muscle tissue while a group of nerve cells form a nerve tissue. They are organised to work 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 out a specific life process. For examples, a group of muscle tissues, epithelial tissues and connective tissues form blood vessels. Several organs are organised 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.