1, biological
Biology is a science to explore life phenomena and the laws of life activities, and it is a basic subject in natural science. Its research object is the structure, function, occurrence and development law of organisms (including plants, animals and microorganisms). Its purpose is to clarify and control life activities, transform nature and serve the practice of agriculture, industry and medicine.
For thousands of years, human beings have accumulated rich knowledge about plants, animals, microorganisms and human bodies in the practice of agriculture, forestry, animal husbandry, fishing and medicine. From 65438 to 0859, the British naturalist Darwin published The Origin of Species, which established the materialist view of biological evolution and promoted the rapid development of biology.
2. Physics
Physics is a subject that studies the most common laws of motion and the basic structure of matter. Physics, as the leading discipline of natural science, studies the most basic motion forms and laws of all substances from the universe to elementary particles, so it has become the research basis of other natural science disciplines.
Physics began in the era of Galileo and Newton, and now it has become a basic science with many branches. Physics is an experimental science, and it is also a science that advocates rationality and attaches importance to logical reasoning. Physics, which makes full use of mathematics as its working language, is the most accurate natural science subject today.
3. Chemistry
Chemistry is a basic natural science that studies the composition, structure, properties, transformation and application of substances at the atomic and molecular levels. It originates from life and production practice, and develops with the progress of human society.
Different from particle physics and nuclear physics, chemistry studies the physical structure of atoms, molecules and ions (groups) and the interaction between chemical bonds and intermolecular forces. Its scale is the closest to the micro-world, so its natural laws are also most closely related to the physical and chemical properties of substances and materials in the macro-world where human beings live.