Skin epidermis, tooth, enamel, lens and corner of outer ear, brain, spinal cord, skeletal muscles of human head are derived from
a)	Ectoderm	b)	Mesoderm	c)	Endoderm	d)	Both (c) and (d)

(a)

Ectoderm.

Fate of three germ layers

Mesoderm Dermis of skin, circulatory system, muscles, bones (except facial)

Endoderm Lining of  tract, lining of lungs, kidney ducts and bladder, thymus,        thyroid tonsils

Ectoderm Epidermis of skin, tooth enamel, lens and cornea of the eye outer ear Brain     and spinal cord, facial bones skeletal muscles in the head