Which of the following represents the correct | vedclass

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(A) Option $A$ is correct because Chondrichthyes (cartilaginous fishes) possess a ventral mouth,gills without operculum,placoid scales,and a persisten

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Mouth ventral,gills without operculum,skin with placoid scales,persistent notochord - Chondrichthyes

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(A) Option $A$ is correct because Chondrichthyes (cartilaginous fishes) possess a ventral mouth,gills without operculum,placoid scales,and a persistent notochord throughout life.Option $B$ is incorrect because Cyclostomata lack paired appendages.Option $C$ is incorrect because the skin of Aves is dry and non-glandular (except for the oil gland at the base of the tail).Option $D$ is incorrect because while most mammals have pinnae and two pairs of limbs,some mammals like whales (Cetacea) lack pinnae and hind limbs,making it not an exception-less rule.

$(1)$ Diploblastic	$(a)$ Protozoa to Echinodermata
$(2)$ Coelomate	$(b)$ Platyhelminthes to Chordata
$(3)$ Triploblastic	$(c)$ Coelenterata
$(4)$ Invertebrates	$(d)$ Annelida to Chordata

List $I$	List $II$
$A$. Pleurobrachia	$I$. Mollusca
$B$. Radula	$II$. Ctenophora
$C$. Stomochord	$III$. Osteichthyes
$D$. Air bladder	$IV$. Hemichordata

Which of the following represents the correct combination without any exception?
Characteristics - Class

Similar Questions

Select the correct option for the following matches:
$(1)$ Diploblastic $(a)$ Protozoa to Echinodermata
$(2)$ Coelomate $(b)$ Platyhelminthes to Chordata
$(3)$ Triploblastic $(c)$ Coelenterata
$(4)$ Invertebrates $(d)$ Annelida to Chordata

What will you look for to identify the sex of the following?

Which group of animals consists of poikilothermic (cold-blooded) animals?

Match List $I$ with List $II$ :
List $I$ List $II$
$A$. Pleurobrachia $I$. Mollusca
$B$. Radula $II$. Ctenophora
$C$. Stomochord $III$. Osteichthyes
$D$. Air bladder $IV$. Hemichordata

Choose the correct answer from the options given below :

Which of the following phyla exhibit metameric segmentation?

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Which of the following represents the correct combination without any exception?Characteristics - Class