Examlex
Select the graph of the equation.
Ectoderm
The embryonic external layer of cells or tissue that forms early on and develops into the skin and nervous system.
Mesoderm
The middle layer of an embryo in early development, between the endoderm and ectoderm, which gives rise to muscles, bones, and blood tissues.
Germ Layer
Each of the three layers of cells (ectoderm, mesoderm, and endoderm) that form during embryogenesis, which give rise to all tissues and organs of an organism.
Radial Cleavage
A type of embryonic development in which the cells divide parallel or perpendicular to the polar axis, resulting in a radially symmetrical embryo.
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