Its shell.
Mollusks have hard shells to help protect them.
Mollusks have a mantle, which is a protective layer of tissue that covers their soft body. The mantle plays a role in shell formation and can also secrete mucus for locomotion or defense.
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Mollusks do not have a spiny or leathery covering; instead, they typically possess a hard external shell made of calcium carbonate, which can be smooth or textured. Some mollusks, like octopuses and squids, lack a traditional shell and have a more flexible body structure. The shell serves as protection for many species, while others rely on camouflage or other adaptations for defense.
Mollusks are invertebrates because they do not have a backbone.
Raccoons eat mollusks. Otters eat mollusks. People eat mollusks.
Yes, certain mollusks, particularly cephalopods like squids and octopuses, can squirt ink as a defense mechanism. This ink is released into the water to create a cloud that helps them evade predators by obscuring their escape. The ink contains melanin and other compounds that can also irritate the eyes or respiratory systems of attackers. However, not all mollusks produce ink; it is primarily a characteristic of cephalopods.
Mollusks are not classified as mammals.
oysters
Soft-bodied mollusks, such as slugs and octopuses, primarily rely on camouflage and behavioral adaptations for protection. Many have the ability to change color or texture to blend into their surroundings, helping them avoid predators. Additionally, some species can release ink or produce toxic substances as a defense mechanism. Furthermore, certain mollusks have shells, like snails and clams, that provide physical protection against threats.
The only mollusks that are Gastropoda are slugs and snails.