To prevent desiccation and injury, the embryos of terrestrial vertebrates are encased within a fluid secreted by the[ "amnion", "chorion", "allantois", "yolk sac" ]

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***A*** ∻Key Concept∻ ⚹Amnion⚹ ∻Explanation∻ ⚹The amnion is a membrane that surrounds the embryo of terrestrial vertebrates and contains the amniotic fluid, which prevents desiccation and provides cushioning to protect the embryo.⚹◊How does the amniotic fluid protect the developing embryo from desiccation and injury in terrestrial vertebrates?⍭ Generate me a similar question◊

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