Phylum Annelida resembles Mollusca in embryon | vedclass

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(A) Phylum $Annelida$ and $Mollusca$ are both classified under the group $Lophotrochozoa$ (or $Protostomia$).Both phyla exhibit $spiral$ $cleavage$ du

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Spiral cleavage and mesoderm formation

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(A) Phylum $Annelida$ and $Mollusca$ are both classified under the group $Lophotrochozoa$ (or $Protostomia$).Both phyla exhibit $spiral$ $cleavage$ during early embryonic development.Furthermore,in both groups,the $mesoderm$ is derived from a specific cell called the $4d$ cell (or $mesentoblast$),which is a characteristic feature of $spiral$ $cleavage$ in protostomes.Therefore,they share similarities in their early embryonic development patterns.

Column-$I$	Column-$II$
$I.$ Hepatopancreas	$p.$ Mollusca
$II.$ Digestive tract with digestive glands	$q.$ Arthropoda
$III.$ Digestive tube straight or coiled	$r.$ Hemichordata
$IV.$ Straight or $U$-shaped digestive tract	$s.$ Echinodermata

Phylum $Annelida$ resembles $Mollusca$ in embryonic features because both have

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Match the following columns:
Column-$I$ Column-$II$
$I.$ Hepatopancreas $p.$ Mollusca
$II.$ Digestive tract with digestive glands $q.$ Arthropoda
$III.$ Digestive tube straight or coiled $r.$ Hemichordata
$IV.$ Straight or $U$-shaped digestive tract $s.$ Echinodermata

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