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Certainly not all of them, as marine biologists are constantly finding new life forms in the seas. However: crabs, lobsters, snails, and nautilus's have shells, also known as exoskeletons.
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Are mollusks not invertebrates because some have outer shell?
Mollusks are invertebrates
Are mollusks not invertebrates because some have an outer shell?
Mollusks are invertebrates
Do invertebrates musclesattach to the backbone?
Invertebrates have no backbone, muscles are attached to outer shell.
What are animals that are usually covered with a shell called?
These animals are called invertebrates. Invertebrates have no backbone. Examples of invertebrates are insects.
Is a mussel a invertebrate?
Yes. It has a shell. Invertebrates have no backbone, vertebrates do. Invertebrates often have a hard external shell (like a mussel), or exoskeleton (like a crab), to protect them from predators.
Are clams vertebrate or invertebrate?
calms are not vertebrates they are invertebrates unless a shell can grow a backbone they will stay invertebrates
Is it true that mollusks with a hard outer shell are invertebrates?
Yes, they are invertebrates as they don't have a spine or an internal skeleton.
Are crown jellyfish invertebrates?
Because they have no endo- or exoskeleton. (No bones or shell)It doesn't have a backbone
Is a snail vertebrates or invertebrates?
vertebarte
How do invertibrates keep their shape?
Invertebrates have their skeleton on the outside. This hard shell defines their shape.
Do tarantula's have a backbone?
No. They are invertebrates (no-backbone creatures) and they have an exoskeleton, which is an outer shell that is rigid enough to hold all the inner parts in their proper places. They have no bones.
Is a shrimp a invertebrates or vertebrates?
The shrimp is an invertebrate. It is supported by its shell, which is an exoskeleton. It does not have any bones inside of it.
