Prep Test2- essay11

louiswzy

38题 “ Thus, both neurotoxins, while somewhat effective, interfere with the slugs' feeding behavior and limit their ingestion of the poison, increasing the probability that some will stop feeding before receiving a lethal dose.” 大致意思是这两种神经毒素虽然对杀虫有效，但是会使得虫子不吃东西，而限制了虫子对毒药得吸收。所以C说如果让虫子先吃到了致命得毒药，然后再让他们不能吃，则更为有效。