Which of the following does NOT occur during prophase? A. The DNA replicates itself.
B. The DNA condenses itself into chromatids.
C. The nuclear envelope breaks down.
D. The centrosomes create microtubules.

the answer is c.) there is a warm front in region a and a stationary front in region b.

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.

it is because according to the process , scientific inquiry is a process with many steps because each step occurs to the scientist and if you just skip a step there would be no steps to scientific inquiry.