What is biology and things related to it

Biology examines the structure, function, growth, origin, evolution, and distribution of living things. It classifies and describes organisms, their functions, how species come into existence, and the interactions they have with each other and with the natural environment.

Explanation: And all you will ever need to remember is that mitochondia is the powerhouse of the cell.

biology is related to life on earth and the study of how earth has been created etc ...