A. they divide in two
i dont know b sorry
Answer:
both A and B
Explanation:
Together, the number of protons and the number of neutrons determine an element's mass number.
If one of the babies has a different eye color
The centrioles first begin to move to opposite sides of the cell.
Answer:
Fraternal twins are from two seperate eggs.
Explanation:
The first part of the question is missing but any difference between fraternal twins can be explained by the fact that two seperate eggs are fertilized during the pregnancy so they have different genomes which leads to having different dominance of different genes and this leads to different expressions of this genes.
I hope this answer helps.