The development of Mollusca is: | vedclass

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(A) The development in $Mollusca$ can be direct or indirect. In many marine mollusks,the development includes a free-swimming larval stage known as a

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With a larva named $trochophore$

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(A) The development in $Mollusca$ can be direct or indirect. In many marine mollusks,the development includes a free-swimming larval stage known as a $trochophore$ larva. Some species also exhibit other larval forms such as the $veliger$ or $glochidium$ (in freshwater mussels). Therefore,the presence of a $trochophore$ larva is a characteristic feature of many mollusks.

The development of $Mollusca$ is:

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