Sodium extract solution is prepared and 1ml of that Na extract solution is taken in a clean test-tube and added few drops of sodium hydrox...

Cyanobacteria are both useful as well as harmful to mankind and other living organism on the planet. The economic importance of cyanobacte...

Archaebacteria is the most primitive and ancient bacteria. They are supposed to be oldest of the living fossils. They possess a unique cel...

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The system which controls , regulate and co-ordinate the functioning of all organ of the body is called as nervous system. In earthworm  ,...

This is 2073 B.S (2017 A.D) second term question paper. This exam was conducted by Nepal Education Foundation (NEF). I took this exam fr...

Year 2067 B.S   Year 2068 B.S Year 2069 B.S  Year 2070 B.S  Year 2071 B.S ...

More on original Site : ohonotes.com/economic-importance-of-earthworm.html Earthworms are both useful and harmful to mankind. Usefu...

On the basis of organism body preserved fossils are of following types : 1. Intact or entire or unalterated fossils : They are those t...

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