Explanation:
Biology is a science that deals with the study of life in its entire forms for instance, plant, animals, bacteria, etc. It covers several branches such as botany, zoology and microbiology that study the structure and functions of the life forms and their growth processes as well as evolution.
Other Options:(A) Plants: This is true this paricular is sepcific to botany.
(B) Animals: Zoology specialises in this area.
(C) Micro-organisms: Microbiology is the branch of science which deals with the study of microorganisms.