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生物学是一门研究生物结构和功能、发生和发展规律的科学。学习生物学就要充分体现生物学科的这一特点。怎样才能系统地掌握生物学知识?我认为在学习中注意以下两条线索是很重要的。 1、生物体与环境相适应的线索 每种生物体都要生活在一定的环境中,如鱼遨游水中,鸟飞翔空中等。生活在一定环境中的生物由于长期自然选择的结果,其身体的一些形态结构就保留了与环境相适应的构造,因此我们在学习时就要抓住这一特点,从而掌握其特性。如鱼,体形为梭形,体色背部较深,腹部较浅,体侧有侧线,体表分泌粘液,身体长鳍,用于平衡和游泳等。
Biology is a science that studies the structure, function, occurrence and development of biological structures. Learning biology must fully reflect this feature of the biology department. How can we systematically grasp biological knowledge? I think it is important to pay attention to the following two clues in learning. 1. The clues that organisms adapt to the environment Each organism must live in a certain environment, such as swimming in water and flying in the air. Because of the long-term natural selection of living organisms in a certain environment, some of their body’s morphological structure retains a structure that is compatible with the environment. Therefore, we must grasp this feature in our study to grasp its characteristics. Such as fish, body-shaped spindle, body color deeper back, abdomen shallow, body side with lateral lines, body surface secretion of mucus, body length fins, for balance and swimming.