大全-9-20

一起加油的夥伴

其實這一題我也非常的糊塗,

原文中有說Parasitic wasps lay their eggs directly into the eggs of various host insects in exactly the right numbers for any suitable size of host egg.

--->所以可知,寄生時決定的是寄主蛋的大小

(A) The size of the smallest host egg that a wasp could theoretically parasitize can be determined from the wasp’s egg-laying behavior.決定的是寄主蛋的大小

(C) Parasitic wasps learn from experience how many eggs to lay into the eggs of different host species.決定的是寄主蛋的數量多寡

不曉得我的理解是否錯誤,歡迎指正

[此贴子已经被作者于2005-11-15 14:19:11编辑过]