The most important adaptation of the reptiles and birds to life on land was the development of the ________ egg.
A)shelled
B)amniotic
C)external
D)impermeable

Question

Quizplus · Accepted Answer

The amniotic egg is the most important adaptation of reptiles and birds to life on land. This specialized egg contains a self-contained ecosystem that allows embryos to develop and hatch on land, without the need for water for embryonic development. The shell of the egg provides protection and prevents moisture loss, while the yolk sac provides the nutrients necessary for development. This adaptation allowed reptiles and birds to colonize terrestrial environments and diversify into a wide range of ecological niches.

The Most Important Adaptation of the Reptiles and Birds to Life