Scientist can use other animals to study things that affect humans like genetic
diseases. Why?

answer; i believe the correct answer is (data); /// good luck

the backbone of the dna and rna compound is sugar phosphate.

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.