Answer:
Adaptation feature
Step-by-step explanation:
Light-sensitive cells are scattered in their outer skin, mainly at the ends of their bodies. They allow earthworms to detect light and changes in light intensity. Earthworms don't use a nose, mouth or lungs to breathe like we do. In other words, earthworms don't have eyes like we do. Instead, they can sense light through their skin. These natural light sensors let the earthworms know when they are getting too close to a bright light, such as the sun. Earthworms try to stay out of sunlight because the heat from the sun dries out their skin.
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