蚯蚓没有眼睛和耳朵,也没有舌头,可以说是“盲聋哑”三重残废!在闷热的雨天的傍晚,大量的蚯蚓会钻出地面,它们没有四肢,不能跳,不能跑,完全靠蠕动前行。蚯蚓蠕动靠的是发达的肌肉和体表粗糙的毛,前行时,身体后部的毛钉入土中,后部便不能移动,这时肌肉中的环肌收缩,纵肌紧张,身体向 Earthworms have no eyes, no ears and no tongue. They can be said to be “blind deaf and mute.” In the hot rainy night, a large number of earthworms will drill out of the ground. They do not have limbs, can not jump, can not run, Peristalsis line. Earthworm creep depends on the developed muscle and rough surface hair, forward, the body of the nail into the soil in the back, the rear can not be moved, then the muscles of the ring muscle contraction, longitudinal muscle tension, body to