Describe the events of anaphase

major event of anaphase is the sister chromatids moving to opposite poles of cells due to action of the condensing spindle fibres.

Explanation:

the chromatids only start separating when the pressure is sufficient to split the centromere.

evidence and logical support is essential for a scientist to do in order to maintain credibility. this is because no one can believe without any logic and without any evidence.hence a scientist can maintain credibility by proving himself and by answering logically so experiments prove very beneficial. logical hypothesis give conclusion which is acceptable. therefore, there are two main factors to maintain credibility by a scientist is evidence and logical support.

the answer is d p: cell, q: organ, r: organ system, s: tissue