MCAT Question of the Day
    •

    Q:

    		 During human development, from which primary germ cell layers do skin and the peripheral nervous system develop?
    		 

    A

    		 mesoderm only

    B

    		 mesoderm and ectoderm

    C

    		 ectoderm only

    D

    		 ectoderm and endoderm



    Embryonic Development |
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