Classification of Sciences

I can get new and useful knowledge from the sciences books, so I am interested in sciences in an academic field. Because sciences are divided into many classes, and I can't describe a full classification of sciences with my in being knowledge, therefore I will only describe certain parts of the total classification. Science is classified into pure science and natural science. Pure sciences include mathematics, physics and chemistry, natural sciences include earth sciences and …

…and function of cells. Ecology may be defined as the branch of biology which studies the relationships between organisms and their environments. The field of genetics studies heredity, the mechanisms of hereditary transmission and the variation of inherited characteristics among similar or related organisms. And the two kinds of microbiology are bacteriology and virology. To sum up, there are various subjects in the field of sciences, and each subject has research direction on their own.