LEVELS OF BIOLOGICAL ORGENIZITION

LEVELS OF BIOLOGICAL ORGANIZATION:-  

 

ATOMS:-

All elements are composed of small particles called atoms. There is only one type of atom in each type of element.

SUB-ATOMIC PARTICLES:-

Atoms are further divided into tiny particles called subatomic particles. Althrough there are a number of sub atomic particles, but the most important and stable of these are
*Protons
*Neutrons and
*Electrons

MOLECULES:-

When two or more atoms of same elements or different elements are bounded together, they form a structure called molecules.

ORGANELLES:-

Various compound or molecules join together to form definite structure with definite functions called organelles e.g- Lipids and proteins join to form membrane.

CELL:-

Different and enormous molecules, compound and organelles arranged themselves and are bounded by membrane to form cell.

TISSUES:-

Similar cells combine together to form tissues in multicellular organisms e.g-  Muscle And nerve tissue.

ORGANS:-

The related tissue in a particular manner join together to form organs e.g- Lungs,Heart,Heat,Xylem and Phloem.

ORGAN SYSTEM:-

The different organs coordinate in their function and constitute a system which perform a perticular function e.g- blood vescular system which is composed of heart,vessels and blood

ORGANISM:-

Different organ system collectively form a whole body called organisms e.g- circulatory,respiratory,digestive,excretory,reproductive and nervous system join together to form an organism.

 SPECIES:-

A group of similar organisms that can interbreed freely in nature and produce fertile offspring is called specie.

POPULATION:-

A group of organisms of the same specie living together in the same area and sharing the same resources.

COMMUNITY:-

A group of different population living together in the same area and sharing the same resources.

ECO SYSTEM:-

A community together<interacts> with its non living environment <i.e soil,air,water.>

BIOSPHERE:-

The part of earth inhabited by living organisms including both living and non living components.
 
 

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