生物学是一门重要的自然科学，它的重要性不低于物理、化学。随着人类社会的发展，人口、环境、食物、能源等问题已成为全世界面临的最大问题，而这些问题的解决一刻也离不开生物学，生物学的发展将影响农、林、牧、水产、医疗卫生等事业的发展．二十一世纪是生物世纪这一点已 Biology is an important natural science, its importance is not less than physics, chemistry. With the development of human society, population, environment, food, energy and other issues have become the biggest problems the world faces. The solution of these problems can not be separated from biology at the moment. The development of biology will affect the development of agriculture, forestry, animal husbandry, Aquatic products, health care and other business development. The 21st century is the century of biology