The blastula in birds consists of a cap of cells, the Blank______, atop the yolk.Multiple choice question.blastodiscblastocoelblastomereblastocyst

A mammalian egg undergoes Blank______ cleavage, forming a structure called a Blank______.Multiple choice question.meroblastic; blastocystmeroblastic; blastodischoloblastic; blastocystholoblastic; blastodisc

The inner cell mass will eventually become the Blank______.Multiple choice question.blastocystfetusmorulazygote

The three primary germ layers in birds and mammals form from cells that migrate through the Blank______.Multiple choice question.neural crestprimitive streakblastocoel cavitylateral fold

Multiple Choice QuestionThe extraembryonic membrane that is the first site of blood cell formation in mammals is the Blank______.Multiple choice question.allantoisyolk sacamnionchorion

The extraembryonic membrane that contains fluid to cushion and protect the embryo is the Blank______.Multiple choice question.yolk sacallantoisamnionchorion