题目

吸虫无表皮,体壁由皮肌囊构成,皮肌囊内侧为体腔。 Trematodes have no epidermis, and their body wall is composed of dermo-muscular sacs, with the body cavity located on the sacs'inner side.A. 正确B. 错误

吸虫无表皮,体壁由皮肌囊构成,皮肌囊内侧为体腔。 Trematodes have no epidermis, and their body wall is composed of dermo-muscular sacs, with the body cavity located on the sacs'inner side.

A. 正确

B. 错误

题目解答

答案

B. 错误

解析

本题考查吸虫的体壁和体腔结构相关知识。解题思路是明确吸虫体壁的组成以及体腔的特点，然后与题目描述进行对比判断。
吸虫的体壁确实由皮肌囊构成，皮肌囊包括了表皮层和肌肉层。而吸虫是无体腔动物，其皮肌囊内侧并没有真正的体腔。题目中说吸虫无表皮且皮肌囊内侧为体腔，这与吸虫的实际结构特征不符。