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2 July, 16:14

Why is the amniotic egg considered an important evolutionary breakthrough? it has a shell that increases gas exchange. it allows deposition of eggs in a terrestrial environment?

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  1. 2 July, 17:25
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    The correct answer is it allows deposition of eggs in a terrestrial environment. Amniotic egg allowed the first reptiles to colonize dry land via the ater-impermeable amniotic membrane. This membrane envelops the fluid-filled amniotic cavity and has a function in preventing the desiccation.
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