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Barnacles and corals are two types of animals that live in the ocean. Both animals build a hard layer of calcium carbonate around their soft body parts. What is the MOST LIKELY reason that they build these layers?

User Riyaz Khan
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Answer:They do this so they can be safe from predators.

Step-by-step explanation: They make this hard layer so it can help protect the vulnerable soft parts of their body from other fish or mammals.

User Keelar
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