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because they have no skeleton.

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13y ago

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What characteristic distinguishes arthropods and mollusks?

Mollusks compose of the large phylum of invertebrate animals known as the Mollusca. Mollusks have a mantle, mollusks invertebrate. Arthropods have jointed appendages, arthropods have segmented bodies


How are arthropods and mullusks the same?

Arthropods have an exoskeleton. Mollusks don't.


Are scorpions annelids flatworms mollusks arthropods cnidarians or echinoderm?

a scorpion is a Arthropods


How are vertebrates different from mollusk and arthropods?

Vertebrates have spinal cords. Mollusks and arthropods do not.


What is closer related to humans mollusks or arthropods?

Arthropods are more closely related to humans than mollusks. Both humans and arthropods belong to the larger group called Ecdysozoa, which is characterized by molting exoskeletons, while mollusks belong to a separate group called Lophotrochozoa. This evolutionary relationship places arthropods and humans closer on the tree of life.


Which animal is not a arthopods?

Sponges, Cnidarians, Mollusks, and Echinoderms are not Arthropods.


The first land animals belong to which group A arthropods B echinoderms C mollusks D vertebrates?

A. Arthropods


What is the groups of invertebrates?

sponges+mollusks+arthropods+worms+octopods+echinoderms


Which groups of invertebrates are protostomes?

Flatworms, Roundworms, Annelids, Mollusks, and Arthropods


Is a lobster a echinoderms or a mollusks?

Lobsters are neither echinoderms nor mollusks like clams. They are also not arachnids. Instead, they are crustaceans, a subsection of arthropods.


How many mollusks are there in the world?

There are over 50,000 known species of Mollusks! That figure makes them second only to the Arthropods in invertebrate phylum size.


Is a grasshopper is invertebrate?

No. Grasshoppers are arthropods. Mollusks are usually aquatic, and do not resemble insects.