Question

Anne has been observing human embryos in different stages. She wants to study the gastrula phase. How will she find it? by looking for the presence of the neural tube and the notochord in the embryo by looking for the presence of the germ layers and the primitive gut in the embryo looking for the presence of the heart and lungs in the embryo

Answer 1

By looking for the presence of the germ layers and the primitive gut in the embryo 

Answer 2

Answer:

She will find it by looking for the presence of the germ layers and the primitive gut in the embryo

Explanation:

If she wants to see the gastrula she must know that it is formed by

the gastrulation process. This is the process by which the embryo acquires three germ layers (ectoderm, mesoderm and endoderm) and acquires an axial orientation. Germ cells are formed from the migration of mobile populations. Anne would observe the primitive gut cavity becaue it is the endoderm and forms the rudiment of the animal’s future gut and many of its associated digestive organs and glands.