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

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

Which layer gets attached to the cells of endometrium and name the part which develops intoembryo?a) Trophoblast and inner cell mass b) Trophoblast and ectodermc) Ectoderm and endoderm d) Trophoblast 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.

Which of the following statements concerning animal gastrulation is correct?Group of answer choicesCells from the blastomere cannot become mesodermal cells.Three germ layers are created; the endoderm, mesoderm and epidermis.The endoderm develops into the gut and lungs.The mesoderm develops into the muscles and nervous system.