Tortoises are larger on the islands, where there are less predators
Flinches are different colors depending on their diet yet they are still anatomically similar
Animals are different within species and mate all the way to the point where some must die
Answer:
I would say bias.
Explanation:
bias: prejudice in favour of or against one thing, person, or group compared with another, usually in a way considered to be unfair.
"there was evidence of bias against foreign applicants"
When you are being biased, you are putting your own opinion into what you are doing or you are trying to persuade the person hearing you, reading what you wrote.
Therefore, Evidence without bias increases its reliability.
Landforms that are most likely to have coal, oil, and gas deposits are basins.