Select the incorrect statement.

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(B) $1$. According to evolutionary history,lobe-finned fish (like Coelacanths) are considered the ancestors of the first amphibians.$2$. Amphibians ev

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The class Amphibia includes frogs and toads.

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(B) $1$. According to evolutionary history,lobe-finned fish (like Coelacanths) are considered the ancestors of the first amphibians.$2$. Amphibians evolved into reptiles. Reptiles were the first vertebrates to be fully adapted to life on land.$3$. Reptiles dominated the Earth for a long period,approximately $200$ million years,before the rise of mammals.$4$. The statement 'The class Amphibia includes frogs and toads' is a biological fact,but in the context of evolutionary history questions,the statement 'Reptiles dominated the Earth for about $200$ million years' is often cited as the period of the Mesozoic Era. However,the statement 'Amphibians evolved from lobe-finned fish' is correct. The statement 'Reptiles evolved from amphibians' is correct. The statement 'Reptiles dominated the Earth for about $200$ million years' is historically accurate. Therefore,the statement 'The class Amphibia includes frogs and toads' is technically correct as a classification fact,but if we look for the incorrect statement regarding evolutionary history,we must re-evaluate. Actually,the statement 'Reptiles dominated the Earth for about $200$ million years' is the most accurate description of the Mesozoic era. The statement 'The class Amphibia includes frogs and toads' is a general classification fact,but in some contexts,it is considered the 'incorrect' choice if the question specifically targets evolutionary milestones.

$(i)$ Vertebrate brain	Homologous organ,Divergent evolution
$(ii)$ Vertebrate heart	Analogous organ,Convergent evolution
$(iii)$ Thorn of Bougainvillea and tendrils of Cucurbita	Homologous organ,Divergent evolution

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The splint bone of the present-day horse is a vestige of which digit?

Find out the correct match from the following table $:-$

$(i)$ Vertebrate brain Homologous organ,Divergent evolution

$(ii)$ Vertebrate heart Analogous organ,Convergent evolution

$(iii)$ Thorn of Bougainvillea and tendrils of Cucurbita Homologous organ,Divergent evolution

Two morphologically similar populations are intersterile. They belong to

........ is the largest land reptile.

Darwinian theory was unable to explain:

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