Examlex
Which of the following is a bridged bicyclic alkane?
Endoderm
Innermost of the three germ layers of an embryo.
Epidermis
Outer portion of the skin formed of epithelial tissue that rests on or covers the dermis.
Germ Layer
One of the three primary layers (ectoderm, mesoderm, endoderm) in early embryonic development from which all tissues and organs develop.
Ectoderm
The outermost layer of cells or tissue of an embryo in early development, giving rise to the outer layer of the skin, central and peripheral nervous systems, eyes, inner ear, and many connective tissues.
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