This flashcard states that a pair of male genital pores are present on the ventro-lateral sides of the 18th segment in earthworms.
此闪卡指出，一对雄性生殖孔位于蚯蚓第18个体节的腹外侧。
| Text | pair of male genital pores are present on the ventro-lateral sides of the 18th segment in earthworms |
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