Answer:
Because each subject in an experiment has to have equal conditions to ensure the most accurate results. And water temperature is known to impact plant growth. An experiment using different water temperatures is a terribly inaccurate experiment.
I believe the answer is The spindle fibers
Microtubule will form the spindle fibers that will grab the chromosome. The formation of microtubule will be start from prophase and it will have role in moving the chromosome through the metaphase and anaphase. If the substance disrupting the formation of microtubules, then spindle fibers will not be formed.
Epimysium surrounds the total bundle of many fascicles - as compared with perimysium, <span>(the fibrous </span>sheath<span> that surrounds and protects individual fascicles, filling the spaces between the fascicles within the bundle of fascicles that forms the muscle itself)</span>
