A hairstreak butterfly my dear.
Answer:
Classification system changes because the scientists find new evidence in their studies.
Explanation: The world is always changing and growing and dying as well as developing, so over time things change. For example, as you grow up do you stay the same? No, you notice the physical changes happening, well thats sort of like how the earth and its ways are always changing as well.
You just gotta do it no matter what happens
No. At that point, you need to determine if the problem lies in the control or the staining reagents or techniques.
I believe the answer is C
