If you were observing embryonic structures of a tortoise, a chick, and a human, which of the following would not be a similiar structure?

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Quizplus · Accepted Answer

Pharyngeal pouches, postanal tails, and eyes are embryonic structures that are common across many vertebrates, including tortoises, chicks, and humans, reflecting their common evolutionary ancestry. However, the specific development of five finger digits is not a feature shared among these embryos at early stages, as it is more specific to the limb development of tetrapods like humans and not directly applicable to the embryonic development of tortoises and chicks in the same way.

If You Were Observing Embryonic Structures of a Tortoise, a Chick