In the process of gastrulation, three embryonic tissue layers
become established. From outermost to deepest, these three
embryonic layers are _____.
In the process of gastrulation, three embryonic tissue layers
become established. From outermost to deepest, these three
embryonic layers are _____.
a)ectoderm, mesoderm, and endoderm |
b)mesoderm, endoderm, and ectoderm |
c)endoderm, mesoderm, and ectoderm |
d)mesoderm, ectoderm, and endoderm |