Which of the following is common to the development of birds and mammals?
A) the formation of an embryonic epiblast and hypoblast
B) the formation of an embryonic trophoblast
C) the formation of an embryonic yolk plug
D) the formation of an embryonic gray crescent

Question

Quizplus · Accepted Answer

Both birds and mammals share the developmental feature of forming an embryonic epiblast and hypoblast. These two layers are crucial in early embryonic development, leading to the differentiation of various tissues and organs in both groups.

Which of the Following Is Common to the Development of Birds