Cartilaginous fishes (Class Chondrichthyes) a | vedclass

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(B) Cartilaginous fishes, belonging to the class $Chondrichthyes$, possess several distinct characteristics.$1$. Their mouth is located ventrally (Ven

Vedclass · Accepted Answer

Ventral mouth

Vedclass · Answer

(B) Cartilaginous fishes, belonging to the class $Chondrichthyes$, possess several distinct characteristics.$1$. Their mouth is located ventrally (Ventral mouth).$2$. They have a cartilaginous endoskeleton.$3$. They possess a heterocercal tail fin.$4$. They lack an operculum (gill cover) and have $5-7$ pairs of gill slits.Therefore, the presence of a ventral mouth is a key characteristic of this group.

Column-$I$	Column-$II$
$(1)$ $Scoliodon$	$(p)$ $Saw$ $fish$
$(2)$ $Pristis$	$(q)$ $Sting$ $ray$
$(3)$ $Carcharodon$	$(r)$ $Dog$ $fish$
$(4)$ $Trygon$	$(s)$ $Great$ $white$ $shark$

Cartilaginous fishes (Class $Chondrichthyes$) are characterised by the presence of:

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Column-$I$ Column-$II$
$(1)$ $Scoliodon$ $(p)$ $Saw$ $fish$
$(2)$ $Pristis$ $(q)$ $Sting$ $ray$
$(3)$ $Carcharodon$ $(r)$ $Dog$ $fish$
$(4)$ $Trygon$ $(s)$ $Great$ $white$ $shark$

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