Since life originated on earth nearly 3.8 billion years ago, there had been enormous
An ecosystem is a structural and functional unit of nature and it comprises
As a branch of biology, Ecology is the study of the relationships of living
Biotechnology has given to humans several useful products by using microbes, plant, animals and
Biotechnology deals with large scale production and marketing of products and
Microbes are a very important component of life on earth. Not all microbes are pathogenic. Many
Health is not just the absence of disease. It is a state of complete physical, mental, social
The origin of life on earth can be understood only against the background of
Nucleic acids are long polymers of nucleotides. While DNA stores genetic
Genetics is a branch of biology which deals with principles of inheritance and
