Answer to Question #271111 in Zoology for Gu²

Question

Explaine how each of the following words is related to the other : embryooy, embryogenesis and embryonation.

Answer 1

The embryological criterion assumes that homologous structures in different species develop out of the same developmental precursors. This made many cases of embryonation discovery possible, as the early developmental stages of different species are more similar than the respective adult forms.