Questions: The first vertebrates to live on land were , but the were better adapted to terrestrial living. reptiles; mammals amphibians; reptiles reptiles; amphibians mammals; amphibians

The first vertebrates to live on land were , but the were better adapted to terrestrial living. reptiles; mammals amphibians; reptiles reptiles; amphibians mammals; amphibians
Transcript text: The first vertebrates to live on land were $\qquad$ , but the $\qquad$ were better adapted to terrestrial living. reptiles; mammals amphibians; reptiles reptiles; amphibians mammals; amphibians
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Solution

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The answer is the second one (B): amphibians; reptiles.

Explanation for each option:

  • Reptiles; mammals: This is incorrect because reptiles were not the first vertebrates to live on land.
  • Amphibians; reptiles: This is correct. Amphibians were the first vertebrates to live on land, but reptiles were better adapted to terrestrial living due to their ability to lay eggs on land and their more advanced respiratory and excretory systems.
  • Reptiles; amphibians: This is incorrect because reptiles came after amphibians in the evolutionary timeline.
  • Mammals; amphibians: This is incorrect because mammals evolved much later than amphibians and reptiles.

Summary: The first vertebrates to live on land were amphibians, but the reptiles were better adapted to terrestrial living.

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