Answer: The correct answer for the blank is- all of these.
Taxonomy can be described as the branch of science that deals with the naming and classification of living organisms (such as plants, animals, bacteria).
Biology deals with the study of life forms, zoology ( particularly deals with the study of animal kingdom) and botany (study of plant kingdom) are the branch of biology.
Thus, Taxonomy is an organising science that is used in all of the given otpions.