Forest butterflies are often brown. This helps them to

Avoid predators

Explanation:

Organisms often mimic their surroundings to escape the predators. This technique is also called camouflaging.

Forest butterflies have also adopted several structural adaptations to avoid predators. Many of them have brown wings with jagged edges so that they resemble dried leaves. In this way, they blend with their surroundings, especially the forest floor, and go unnoticed. On the other hand, butterfly larvae are green in color so that they resemble the leaves on which they feed and avoid predators.

answer; i believe the answer is hydraulic action;

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explanation: