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Because they don't have a backbone (aka vertebrae)

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16y ago

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Are roundworms vertebrate or invertebrate?

Roundworms (scientific name: Nematoda) are invertebrates, as they do not have a spine.


Are tube worms invertebrates?

yes, hookworms are invertebrates since it undergoes roundworms, and roundworms are invertebrates!


What belong roundwors vertebrate or invertebrate?

Roundworms (scientific name: Nematoda) are invertebrates, as they do not have a spine.


Do worms have back bones?

Roundworms and flatworms do not have backbones. All worms are invertebrates.


What is the invertebrate group called if the leech is in it?

Leeches belong to the phylum Annelida (ringworms), like the common earthworm! They are very similar, they have the same bodyplan, rings and bristles.


Common name for nematoda?

Roundworms


What is the scienitific name for roundworms?

Roundworms belong to the phylum Nematoda.


What do roundworms harm?

Roundworms can harm dogs ect;


Do roundworms have radial symmetry?

No, roundworms have bilateral symmetry.


What is the domain of the roundworms?

Roundworms rule the domain of the Phylum'Nematoda'.


What is the different body plan symmetry and feeding methods of cnidarians and roundworms?

Jellyfish are bell shaped and roundworms aren't. Jellyfish sting and roundworms do not. jellyfish are radial and and roundworms are not.


What are the four invertebrate groups?

Porifera (Sponges)Cnidaria (Coelenterates)Flatworms (Platyhelmenthes)Roundworms (Aschelmenthes - Nematode)Segmented worms (Annelids)Mollusks (Soft-Bodied/ hard shelled Animals)Echinoderms (Spiny-Skinned Animals)Arthropods