Reptiles, unlike amphibians, have settled and reproduced on land. This was facilitated by …

The resettlement of reptiles on land was facilitated by c) a three-chambered heart.

The rest of the answers do not fit, since two circles of blood circulation and five-fingered limbs appeared in amphibians, and a constant body temperature appeared only in birds and mammals.

The ability to reproduce on land first appeared in reptiles, this is one of their adaptations to terrestrial life.



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