The mesoderm
A) is located on the outside of the embryo.
B) is found in blastula-stage embryos.
C) lies between the endoderm and the ectoderm.
D) gives rise to the lining (inner epithelium) of the gut.
E) is formed during cleavage.

Question

Quizplus · Accepted Answer

The mesoderm is located between the endoderm and the ectoderm in embryonic development.

Answer: B
 The mesoderm forms from the blastula stage embryo, which has three germ layers including the ectoderm, mesoderm, and endoderm.

Answer: D
 The mesoderm gives rise to various structures including muscle, bone, and the inner epithelium of the gut.

Answer: E 
 The mesoderm is formed during the process of gastrulation, which occurs after cleavage.

The Mesoderm