精选优质文档-倾情为你奉上高中英语科技类阅读四Animals can move from place to place, but plants cannot. When an animal is under attack, it can run away or fight back. . Plants certainly cannot run away, and they lack teeth and claws. But plants can defend themselves by using both physical and chemical means. Some plants have their own ways to keep animals away. For example, the leaves of the holly plant have sharp spines (刺) that discourage grass-eating animals. Holly leaves on lower branches have more
