Which choice is an example of a vestigial structure? Question 4 options:

Liver in humans

Heart in fish

Legs in turtles

Pelvic bone in whales

b. to discover aspects of the natural world.

hopefully i .

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.