Definition of Ect
the outer of three layers of three primary germ layers of the embryo; from it we get tissues such as nails, hair, and glands of the
Examples of Ectoderm in a sen
During a mammal’s development the embryo’s ectoderm eventually becomes the baby’s skin. 
Embryo cells grow into the outside tissue called the ectoderm, which goes on to form the nervous system. 
The surface ectoderm covers embryos of vertebrates and eventually morphs into skin and glands. 
The embryo’s limbs develop from small buds of unspecialized cells that are encased in the protective ectoderm. 
Ectoderm cells inside the protective coating of the embryo eventually become the brain, spinal cord, and peripheral nerves. 
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