Fertilization and development of earthworms occur within cocoons, which are produced by the clitellum and contain eggs, sperm, and nutrition.
La fecondazione e lo sviluppo dei lombrichi avvengono all'interno di bozzoli, prodotti dal clitello e contenenti uova, sperma e nutrimento.
| Text | fertilization and development of earthworms occurs within cocoons which are produced by the clitellum and contain eggs, sperm and nutrition |
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