In birds, cells that migrate through the primitive streak into the interior of the embryo become which of the following germ layers?Multiple choice question.Mesoderm or ectodermEctoderm or endodermEndoderm or mesoderm

Which embryonic germ layer(s) give(s) rise to connective tissues?Multiple choice question.The endodermThe mesodermThe endoderm and the ectodermThe mesoderm, the ectoderm, and the endoderm

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

In mammals, the inner cell mass flattens and delaminates into two layers that will become which of the following?Multiple choice question.Mesoderm and ectodermEctoderm and endodermEndoderm and mesoderm

Which germ layers can differentiate into epithelial tissue?Multiple choice question.Ectoderm and endodermMesoderm and ectodermEndoderm, mesoderm, and ectodermEndoderm and mesoderm

In the course of embryonic development, the three germ layers -- ectoderm, mesoderm, and endoderm -- give rise to different tissues and organ systems in the body. Which of the following options is formed from the endoderm?Group of answer choicesDigestive tract.Skeletal system and muscle.Heart and blood vessels.Nervous system and skin.