Answer:
Long protein filaments called kinetochore microtubules extended from poles on either end of the cell and attached to the kinetochores. During metaphase, the kinetochore microtubules pull the sister chromatids back and forth until they align along the equator of the cell, called the equatorial plane.
Explanation:
Retina is location along the back of an eye (Option D)
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I think the answer is sperm or eggs? i'd need context
A blister is an example of a vesicle.