Crocodile and penguin are similar to whale and dogfish in which one of the following features?
- APossess a solid single-stranded central nervous system
- BLay eggs and guard them till they hatch
- CPossess bony skeleton
- DHave gill slits at some stage
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Match the following columns:
Column-$I$ Column-$II$ $(a)$ Amphibia $(1)$ Air bladder $(b)$ Mammalia $(2)$ Cartilaginous notochord $(c)$ Chondrichthyes $(3)$ Mammary gland $(d)$ Osteichthyes $(4)$ Pneumatic bones $(e)$ Cyclostomata $(5)$ Dual habitat $(f)$ Aves $(6)$ Jawless,circular,sucking mouth
| Column-$I$ | Column-$II$ |
| $(a)$ Amphibia | $(1)$ Air bladder |
| $(b)$ Mammalia | $(2)$ Cartilaginous notochord |
| $(c)$ Chondrichthyes | $(3)$ Mammary gland |
| $(d)$ Osteichthyes | $(4)$ Pneumatic bones |
| $(e)$ Cyclostomata | $(5)$ Dual habitat |
| $(f)$ Aves | $(6)$ Jawless,circular,sucking mouth |
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View SolutionMatch the items in Column-$I$ with Column-$II$ and select the correct option:
Column-$I$ Column-$II$ $(A)$ Fish $(i)$ Two atria and one ventricle $(B)$ Frog $(ii)$ One atrium and one ventricle $(C)$ Snake $(iii)$ Two atria and two ventricles $(D)$ Ostrich $(iv)$ Two atria and incompletely divided ventricle
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| $(A)$ Fish | $(i)$ Two atria and one ventricle |
| $(B)$ Frog | $(ii)$ One atrium and one ventricle |
| $(C)$ Snake | $(iii)$ Two atria and two ventricles |
| $(D)$ Ostrich | $(iv)$ Two atria and incompletely divided ventricle |
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