A) ectodermal only
B) ectodermal and mesodermal
C) endodermal only
D) mesodermal and endodermal
Correct Answer: A
Solution :
The pineal or epiphysis arises from the ectoderm of the embryo. It lies under the corpus callosum between the two cerebral hemispheres. The pineal secretes a hormone named melatonin.You need to login to perform this action.
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