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Introduction to biology;

We can understand the lifestyle of plants , animals. Having that ability to find the disease and reason for it ; ability to utlize renewable and non renewable resources.

Here some special characteristics that were shown by living beings, organized organization leveles

They are,

1.Evolution and heredity 

2.reproduction 

3.metabolism 

4.irritability and coordination 

5.adaptation 

6.growth and development 

Basic structural and functional unit of an organism is cell.

Robert hook 1stly mention about cells.

Basic Taxonomic levels are below,

1.domain

2.kingdom

3.phylum

4.class

5.family

6.order

7.genus

8.species 

Basic organizational level of an organism is given below,

Cell-> tissue ->organ-> system-> organism

Eg.

Cells: blood cells

Tissue: connective tissue

Organ : kidney

System: circulatory system 

Evolution occurs for a long period of time with in an specific species. Traits participate on evolution.

Ability to show the stimulation to a signal is known as irritability.

Use of coordination is homeostasis. 

Homeostasis is a steady state when there is a change on internal or external environment, allow the body to maintain under an boundary.

Irreversible increase of drymass is known as growth .

Growth and displacement are the characters that were shown by both living and non-living organisms

Eg: seawaves can be displaced 

Coral reefs can be grown.