Question

which of the following structure is ectodermal in origin?
a) notochord and lens
b) notochord and thyroid junction
c) nasal cartilage
d) neural plate and cartilage​

Answer 1

Answer:

i think it will be a or d but i can give you an explanation so i think you can know what is the answer

Explanation:

Ectoderm, the germ layer covering the surface of the embryo, gives rise to the outer covering of the animal and, in some phyla, to the central nervous system. Thus structures like epidermis, brain and retinal layer of eye are ectodermal in origin.