Which of the following is a common trait amon | vedclass

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(A) Fishes,amphibians,and reptiles are all oviparous animals,meaning they reproduce by laying eggs. - Fishes and amphibians typically lay eggs in wate

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Laying of eggs

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(A) Fishes,amphibians,and reptiles are all oviparous animals,meaning they reproduce by laying eggs. - Fishes and amphibians typically lay eggs in water,while reptiles lay amniotic eggs on land. - Shelled eggs are characteristic of reptiles and birds,not fishes or amphibians. - Gills are present in fishes and larval stages of amphibians,but not in adult reptiles. - Scales are present in fishes and reptiles,but not in amphibians. Therefore,the common trait among all three groups is the process of laying eggs.

Column-$I$	Column-$II$
$(a)$ Two-chambered	$(i)$ Peacock
$(b)$ Three-chambered	$(ii)$ Labeo
$(c)$ Incomplete four-chambered	$(iii)$ Ichthyophis
$(d)$ Four-chambered	$(iv)$ Lizard

Genus Name	Two Characters $\&$ Class/Phylum
$A$. $Ascaris$	$(i)$ Body segmented,$(ii)$ Males and females distinct; Phylum: $Annelida$
$B$. $Salamandra$	$(i)$ $A$ tympanum represents ear,$(ii)$ Fertilization is external; Class: $Amphibia$
$C$. $Pteropus$	$(i)$ Skin possesses hair,$(ii)$ Oviparous; Class: $Mammalia$
$D$. $Aurelia$	$(i)$ Cnidoblasts present,$(ii)$ Organ level of organization; Phylum: $Coelenterata$

Which of the following is a common trait among fishes,amphibians,and reptiles?

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Match the following columns regarding the number of heart chambers in different animals:

Column-$I$ Column-$II$

$(a)$ Two-chambered $(i)$ Peacock

$(b)$ Three-chambered $(ii)$ Labeo

$(c)$ Incomplete four-chambered $(iii)$ Ichthyophis

$(d)$ Four-chambered $(iv)$ Lizard

Which pair of animals are not included in mammals?

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