Which of the following is a true fish?

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Question

(B) true fish belongs to the class $Chondrichthyes$ (cartilaginous fishes) or $Osteichthyes$ (bony fishes).$1$. Jellyfish is a $Cnidarian$,not a fish.

Vedclass · Accepted Answer

Ray fish

Vedclass · Answer

(B) true fish belongs to the class $Chondrichthyes$ (cartilaginous fishes) or $Osteichthyes$ (bony fishes).$1$. Jellyfish is a $Cnidarian$,not a fish.$2$. Ray fish (like $Stingray$) belongs to the class $Chondrichthyes$ and is a true fish.$3$. Hagfish $(Myxine)$ belongs to the class $Cyclostomata$,which are jawless vertebrates,but they are often distinguished from 'true' fishes $(Gnathostomata)$.$4$. Ichthyofish is not a standard biological name for a fish.Among the given options,the Ray fish is a cartilaginous fish and is considered a true fish.

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

Similar Questions

In which animal is the caudal fin heterocercal (asymmetrical)?

Statement $X$: Boat-shaped body,skin covered with placoid scales.
Statement $Y$: Mouth is generally ventral,jaws are generally toothed.

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

In which of the following organisms does the heart pump only deoxygenated (impure) blood?

Assertion $A$: Sharks are viviparous animals.
Reason $R$: Sharks possess mammary glands.
Which option is correct for Assertion $A$ and Reason $R$?

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