Which invertebrate phylum exhibits unisexual | vedclass

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(B) The phylum $Mollusca$ exhibits a wide range of reproductive and developmental characteristics. $1$. Most mollusks are dioecious (unisexual),but so

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Mollusca

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(B) The phylum $Mollusca$ exhibits a wide range of reproductive and developmental characteristics. $1$. Most mollusks are dioecious (unisexual),but some are hermaphroditic. $2$. Fertilization can be external (as in many bivalves) or internal (as in cephalopods and gastropods). $3$. Development is usually indirect (involving a larval stage like trochophore or veliger),but it can be direct in some species (like cephalopods). Therefore,the correct option is $B$.

Which invertebrate phylum exhibits unisexual or hermaphrodite conditions,external or internal fertilization,and direct or indirect development?

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