545 million years ago
Mollusks have soft body and hard shells but some don't even have shells.
no..... slugs are mollusks and they don't have a shell
Most of Mollusks protect themselves with help of shell . Shell is hard protective covering made up of CaCO3. Cephalopods are not protected by shell .
The hard shell of a lobster is known as the chitin.
Protect against predators trying to eat it.
All mollusks possess a soft body covered by a hard shell, a muscular foot for movement, and a mantle that secretes the shell. These characteristics distinguish mollusks from other phyla in the animal kingdom.
Yes, they are invertebrates as they don't have a spine or an internal skeleton.
Mollusks are animals like snail squid clam cuttlefish lamp shell oyster, they are soft bodied and sometimes hard shelled animals.
Mollusc's have a hard outer shell . For example a mollusk would be a snail and there's even more .Here are examples of a mollusks snail , slugs , clams , oysters , squids and octopus . And also not all mollusks have an hard outer shell for example it would be a slug or a squid they both don't have a hard outer shell . This group is a part of the invertebrate theme.
It is called Mother of pearl.
The Answer would be invertebrate : ) ... !
Mollusks without backbones are called invertebrates. Some examples of invertebrate mollusks include snails, clams, octopuses, and squid. These animals have soft bodies and are protected by a hard external shell or by their muscular structure.