由于科学技术的不断发展,人们对事物的认识也在不断深化,并有了新的认识。对生物学来说也是这样。就拿整个生物界的分类来说,也有人提出了新的分类。他们根据实验资料,发现动物和植物的生化、代谢过程,遗传和细胞内结构等方面都是极其相似的,而这些高等生物的特征跟细菌、蓝绿藻等低等生物相比 Due to the continuous development of science and technology, people’s understanding of things is also deepening and new understanding. The same is true of biology. Take the classification of the entire biological world, it was also proposed a new classification. According to the experimental data, they found that animals and plants are very similar in biochemistry, metabolic process, genetics and intracellular structure, etc., and these higher biological characteristics compared with other organisms such as bacteria and blue-green algae