What is Formed by the Three Layers of Tissue That

Question

What is formed by the three layers of tissue that include the endoderm, mesoderm, and ectoderm?
A) zygote
B) blastocyst
C) gastrula
D) fetus

Accepted Answer

The three layers of tissue that include the endoderm, mesoderm, and ectoderm are formed during the gastrulation stage of embryonic development, resulting in the formation of a gastrula. A zygote is the result of fertilization, a blastocyst is an earlier stage of embryonic development, and a fetus is a later stage of development.