Question

When the butterfly stands on a tree with similar color this change is called

Answer 1

Warning coloration or aposematism

Explanation:

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Answer 2

When the butterfly stands on a tree with similar color this change is called camouflage.

• In order to protect themselves from predators, organisms adopt several tactics, camouflage or cryptic coloration is one of them.
• This phenomenon is also called background matching as the color of the organism resembles that of the background (generally certain parts of  trees)
• In this way, the predator misses the sight of its prey.
• It is thus a mechanism of self-defense.