Question

which group of animals was the first to adapt to life on land by developing large lungs, eggs with a waterproof shell, and scaly, waterproof skin?
a amphibians
b birds
c reptiles
d worms

Explanation:

Amphibians still rely on moist environments and their eggs lack waterproof shells. Birds evolved after reptiles and have feathers instead of scaly skin. Worms are invertebrates without the listed adaptations. Reptiles were the first group to develop large lungs for air breathing, waterproof shelled eggs (amniotic eggs) that don't need water to develop, and scaly waterproof skin to prevent dehydration on land.

Answer:

C. reptiles