The germ layer located on the dorsum of the embryo is the

a. hypoblast.

b. mesoderm.

c. endoderm.

d. ectoderm.

e. epiblast.

d. ectoderm

Explanation: A particular locale of this layer, the neuroectoderm, turns into a section that folds in and turns into the neural cylinder underneath the dorsal surface of the fetus. The front finish of the neural cylinder forms into the cerebrum, and the back area turns into the spinal line  

endoderm: essential germ layer that proceeds to frame the gastrointestinal tract, liver, pancreas, and lungs  

while, ectoderm: essential germ layer that forms into the focal and fringe sensory systems, tactile organs, epidermis, hair, and nails

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands