Question

Complete the Concept Map to describe embryonic development including the formation of the primary germ layers and the extraembryonic membranes.
Drag the appropriate labels to their respective targets
1. allantois and yolk sac
2. hypoblast cells
3. piblast cells
4. blastocyst
5. mesodernm
6. chorion
7. amnion
8. ectodermm
9. endoderm
A. include(s) the outer B. form(s) a bilayered C. form(s) a bilayered
trophoblast, which help embryonic disc, one layer embryonic disc, one
form extraembryonic of which is made of(s):_____ layer of which is made of:_______
membrane(s) called the:_____

Answer 1

Answer:

The correct answer is given below and attached as an image as well.

Explanation:

Blastocyst forms during the stage early embryonic developmental of mammals. The outer cell layer of the blastocyst is known as trophoblast. This outer cell layer gives rise to extra-embryonic membrane - chorion.

The epiblast leads to the development of ectoderm, mesoderm, endoderm known as the three germ layers. It also forms an extra-embryonic layer called the ambion.  Yolk sac and allantois are formed with the help of hypoblast.