Based on this information, what term can be used to describe the walking stick?

Explanation:

The walking stick is a thin insect with a brown color. Due to it's thinness and it's color, birds often overlook it and mistaken it for a twig, making it survive well in the forest .

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the electromagnetic spectrum includes, from longest wavelength to shortest: radio waves, microwaves, infrared, optical, ultraviolet, x-rays, and gamma-rays.

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