<span>The answer is letter B. The formation of the three geminal layers and the primitive gut. The formation of gastrula starts when the cells starts folding in blastula slowly forming into a blastopore, that results to a double layer cup cell, forming the geminal layers and the primitive gut </span>
Answer:
No 2. growing and developing
The older the rocks were the more like they were to have fossils.
Three reasons for cell division are:
.Growth
. Cell Replacement
. Regeneration
. Asexual Reproduction