Question

Write short notes on
i) Gastrulation in chick and formation of 3 germinal
layers,

Answer 1

During gastrulation, a hollow cluster of cells called a blastula reorganizes into two primary germ layers: an inner layer, called endoderm, and an outer layer, called ectoderm. ... All other animals are triploblastic, as endoderm and ectoderm interact to produce a third germ layer, called mesoderm.

please give my ans in brain mark list