Efficiency and you will Discussion

Siphonophores put loads of functionally authoritative zooids that will be homologous to free-living polyps otherwise medusae 27 (Fig. step 1 ). Physalia physalis falls under Cystonectae, a great clade that is sister to most other siphonophores 8 . When you look at the long-stemmed cystonects (every cystonects with the exception of Physalia physalis) gastrozooids (giving polyps) arise while the buds on anterior of nest as they are transmitted into rear of the an enthusiastic elongating stalk, while you are gonodendra (reproductive formations) appear separately along side stalk twenty-eight . In every cystonects, this new gonodendra is actually compound formations, that has gonophores (quicker medusae, impact good gonad), palpons (derived gastrozooids, one use up all your tentacles in cystonects), and you can nectophores twenty-seven . Leia mais