Question
Legless lizards have amniotic eggs, but they do not have limbs. Based on this diagram, what is the most
probable conclusion about the evolution of legless lizards?
Chondrichthyes )
Actinopterygil
Jawa
mineralized
skeleton
Lungs or
lung derivatives
Lobed fins
Actinistia
Dipnal
Amphibia
Limbs with digiti
Reptilla
Ameletle egg lt_.
• Mammalla
© A They evolved independently from other reptiles
• B. They branched off from reptiles and followed the amphibian lineage
O C They had ancestors with four limbs, but they lost this trait during evolution
© D. They branched off from reptiles before the four-limb characteristic evolved
Answer
D. They branched off from reptiles before the four-limb characteristic evolved.