因其雌雄异体,血吸虫是吸虫中比较独特的寄生虫。雌雄异体在血吸虫进化和生态学中具重要作用。一些研究结果表明,血吸虫性别比例倾向于雄性,根据性别选择理论,性别角色是由性别比例决定的。一系列实验证明,雄虫在交配过程中是主动的,裂体科中几个属的血吸虫具有发达的抱雌沟,以便获得和保护雌虫。尽管抱雌沟非常重要,并不 Because of its dioeciousness, schistosomes are the more unique parasites in Trematodes. Dioeciousness plays an important role in the evolution and ecology of schistosomiasis. Some studies have shown that sex ratio of schistosomiasis tends to be male, according to gender selection theory, gender roles are determined by sex ratio. A series of experiments show that males are active in the mating process. Schistosoma japonicum has several well-developed paired female genitalia in order to obtain and protect females. Although it is important to hold the female sulcus, it is not