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Question
The larva, which is connecting link between Annelida and Mollusca is
The larva, which is connecting link between Annelida and Mollusca is
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Solution
The correct option is D Trochophore
Trochophore larva is a small, translucent, free-swimming larva characteristic of marine annelids and most groups of mollusks. Trochophores are spherical or pear-shaped and are girdled by a ring of cilia the prototroch, that enables them to swim. In some mollusks (such as gastropods and bivalves), the trochophore develops into a second stage, the veliger, before metamorphosing to an adult form. Hence, option D is the correct answer.
Trochophore larva is a small, translucent, free-swimming larva characteristic of marine annelids and most groups of mollusks. Trochophores are spherical or pear-shaped and are girdled by a ring of cilia the prototroch, that enables them to swim. In some mollusks (such as gastropods and bivalves), the trochophore develops into a second stage, the veliger, before metamorphosing to an adult form. Hence, option D is the correct answer.
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