The structure that is common in the embryos of mammals, amphibians, birds, fishes and reptiles and which is an evidence of their common ancestry is the? by Sunday | Sep 12 | Biology JAMB | 0 comments A. eye B. chorion C. allantois D. gill-silts Correct Answer: Option D – gill-silts Users Also Read These:If 25kg feed was consumed by 10,000 birds in six…The feature that links birds to reptiles in…Which of the following is the main reason for not…The structure used by fishes to detect the presence…In plants, the structure that performs a similar…