Answer:
The correct answer is
18
Groups of the periodic table: The s-, p-, and d-block elements of the periodic table are arranged into 18 numbered columns, or groups.
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Centromeres split apart during anaphase.
spindle fibers pull the to sister chromatids apart.
Answer:
It's the leaf, or it is called chloroplasts.
Explanation:
Genetics, Medical problems, eating habits etc
