A) Man
B) Insects
C) Sycon
D) Reptiles
Correct Answer: B
Solution :
Superficial blastula this is also called periblastula formed by meroblastic superficial cleavage as in insect. centrolecithal eggs develop to superficial blastula. It consist of a single layer of epithelial cells surrounding the centrally placed yolk. There is no blastocoel e.g., insect.
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