1. Biology is a science to explore life phenomena and the laws of life activities, and it is a basic subject in natural science.
2. Agricultural engineering mainly studies the basic knowledge and skills of agriculture, water conservancy and civil engineering, and organically combines modern science and technology with agricultural industrialization and modernization.
3. Horticulture mainly studies the basic knowledge and skills of varieties, growth habits, breeding, cultivation, reproduction and processing of flowers, fruit trees, vegetables and ornamental trees.