7 янв. 2020 г. · By the next day, continued cleavage has produced a hollow ball of thousands of cells called the blastula. A fluid-filled cavity, the blastocoel, ... |
The Blastocoel in blastula is located above the equator, therefore it is called as eccentric in position. 3. Blastocoel is surrounded by two types of. |
At the 128-cell stage, the blastocoel becomes apparent, and the embryo is considered a blastula. Actually, the formation of the blastocoel has been traced back ... |
18 сент. 2024 г. · Based on the characteristics of the blastula in frogs, the correct answer is that the blastula of the frog is a coeloblastula. |
5 апр. 2020 г. · The whole surface of a frog blastula can be divided into: • 1. A large dark grey or black area on and around the animal pole. It consists of ... |
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