Blastopore is:
Correct answer: B. Opening of gastrocoel
- A. Opening of neural tube
- B. Opening of gastrocoel
- C. Future anterior end of embryo
- D. Found in blastula
Explanation
Blastopore is the opening by which the cavity of the gastrula (gastrocoel), communicates with the exterior. It is formed as a result of invagination of endoderm during embryonic development. During maturation of some animals it evolves into the anus or the mouth; in others it is covered over and contributes to the canal joining the primitive gut with the cavity of the neural tube.
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