Members of —— animal phylum are commonly known as sponges and they are generally marine and mostly asymmetrical animals : ——— प्राणी संघ के प्राणियों को सामान्यत: स्पंज कहते हैं और वह लवणीय एवं असममिति होते हैं−

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Members of —— animal phylum are commonly known as sponges and they are generally marine and mostly asymmetrical animals : ——— प्राणी संघ के प्राणियों को सामान्यत: स्पंज कहते हैं और वह लवणीय एवं असममिति होते हैं−