1 studies how to cultivate land and produce crops.
2 studies animals, their classification, physiology, development, and behaviour.
3 studies and classifies plants.
4 studies microscopic organisms (microorganisms, including viruses) and their interactions with other living beings.
5 studies ecosystems and how people interact with other species, different living beings and inorganic elements.
6 studies the cell as a complete unit, and the molecular and chemical interactions that happen within a living cell.
7 studies genes and heredity.
8 studies the structure of human and animal bodies.