Scientists believe that whale ancestors had individual toes and not fins, but lived near water. Using your knowledge of mutations and natural selection, develop an argument for how mutations could result in webbed toes or fins in whales.

sorry, but you do not have posted the diagram.

i was thinking 4.0 v hope this

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.