Answer:
#male gametes are formed
#generative nucleus divides
#fertilization takes place
#pollen tube grows
# zygote is formed
#embryo is formed
The answer is when levels of the amino acid are high, it binds to the repressor, ending the synthesis of this amino acid
<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>
Bone in the upper arm. called humerus
