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Are mollusks not invertebrates because some have outer shell?
Mollusks are 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.
Is a sea slug a vertebrates invertebrates?
All mollusks are invertebrates because they have no internal skeleton with a backbone. Sea slugs don't even have an external shell like most mollusks do!
Do mollusk have a hard outer shell?
no..... slugs are mollusks and they don't have a shell
Do invertebrates musclesattach to the backbone?
Invertebrates have no backbone, muscles are attached to outer shell.
Is a nautilus a mollusk?
Yes, it is a mollusk because mollusks are squid or octopus-like creatures. Mollusks have a variety of ways to create a shell. Some mollusks have shells on the outside, such as a variety of gastropods. The Nautilus is one of the first cephalopods, which traditionally do not have an exoskeleton shell, which does have an outer shell covering.
Which group of invertebrates has a mantle?
Mollusks have a mantle, which is a thin layer of tissue that covers their body and secretes the shell in shelled mollusks. The mantle plays a key role in respiration, excretion, and shell formation in mollusks.
What is a shell outer covering for?
The outer shell on animals is called an exoskeleton. This exoskeleton is there because these animals do not have a spine like humans do, so they must have the shell to protect them from harm.
Are bivalves invertebrates?
Yes, they are mollusks. Snails and slugs are also mollusks, so you will recognize that these animals don't have internal bones.
What kind of mullusks do not have backbones?
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.
What group of invertebrates has a mantle?
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.
Do mollusks have spines?
No, mollusks do not have spines. They belong to a diverse group of invertebrates that typically have soft bodies, often protected by a hard shell. Mollusks include animals such as snails, clams, and octopuses, which lack a backbone or any spinal structure. Instead, they possess a muscular foot and, in some cases, a mantle that secretes the shell.
