Which of the following structures is formed from ectodermal tissue:
Correct answer: A. Brain
- A. Brain
- B. Muscles
- C. Skeleton
- D. Bones
Explanation
The brain is formed from ectodermal tissue. During embryonic development, the ectoderm is one of the primary germ layers that gives rise to various structures including the nervous system, skin, hair, and nails. The brain and nervous system originate from specialized ectodermal tissue. Therefore, option a is correct.
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About Embryonic Development
Embryonic development begins after fertilization with cleavage and formation of the morula and blastula, followed by gastrulation and the establishment of germ layers. It includes organ formation, tissue differentiation and early growth, rather than the later increase in size associated with postnatal development.
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