(Answer)There are three main branches which include;
• Botany.
• Zoology.
• Microbiology.
; Other branches are
• Genetics.
• Cytology.
•Morphology.
•Anatomy.
•Physicology.
•Ichthiology.
• Bacteriology.
• Entomology.
•Ecology.
•Taxonomy.
•Virology.
•Biochemistry.