Similar gill pouches in embryos of a chick, human, and cat are an example of ________.

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The similar gill pouches in embryos of different species indicate developmental homology, meaning they have a shared ancestry and genetic programming for the development of similar structures. Structural homology refers to similar structures in adults, while genetic homology refers to shared genetic sequences. The inheritance of acquired characters is an outdated idea that proposes that individuals can pass down traits that they acquire during their lifetime, which is not supported by modern genetics.

Similar Gill Pouches in Embryos of a Chick, Human, and Cat