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-$II$
$I.$ Skin without scales	$p.$ $Catla$
$II.$ Placoid scales	$q.$ $Hagfish$
$III.$ Cycloid scales	$r.$ $Chameleon$
$IV.$ Epidermal scales	$s.$ $Ray-fish$

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

Similar Questions

Match the following columns:
Column-$I$ Column-$II$
$I.$ Skin without scales $p.$ $Catla$
$II.$ Placoid scales $q.$ $Hagfish$
$III.$ Cycloid scales $r.$ $Chameleon$
$IV.$ Epidermal scales $s.$ $Ray-fish$

Give one example each for an animal possessing placoid scales and that with cycloid scales.

The term "phylum" in animal classification was coined by

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Which of the following pairs is incorrectly matched?

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