Which of the following contributions of the extra embryonic membranes was crucial for the colonization of land by vertebrate organisms?
A) extraembryonic membranes provide an aqueous environment for embryo development
B) extraembryonic membranes provide nutrients that produce energy for development
C) extraembryonic membranes direct morphogenesis within the embryo
D) extraembryonic membranes give rise to crucial organ systems, like the heart and brain

Question

Quizplus · Accepted Answer

Extraembryonic membranes, such as the amnion, provide an aqueous environment that is crucial for the development of the embryo, especially in terrestrial environments where desiccation is a risk. This adaptation was key for vertebrates in colonizing land.

Which of the Following Contributions of the Extra Embryonic Membranes