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What else can I help you with?
What are the roundworms ancestor?
There is some debate about what other groups the nematodes, or roundworms, are most closely related to, and therefore from what group they descended. Nematodes are classified as being in the clade Ecdysozoa which also includes arthropods. If nematodes are truly closely related to arthropods then they share a common ancestor.
What are the invertebrate groups?
The eight groups are:* Mollusks * Echinoderms * Arthropods * Annelids * Nematodes * Porifera* Platyhelminthes * Coelenterates Or go to:What_are_the_8_groups_of_invertebrates
Do both nematodes and arthropods possess an external covering or cuticle?
Yes. A nematode is covered by a tough cuticle that is periodically shed through ecdysis.
Do arthropods molt?
Yes, arthropods have to moult in order to increase in size, because their exoskeleton is rigid and inhibits growth. The process is called ecdysis and is not limited only to arthropods; it is a characteristic of their clade, ecdysozoa, which includes nematodes and other phyla.
What are the phyla's?
In no particular order: Chordates Echinodermata Platyhelminthes (Flatworms) Nematodes (Roundworms) Annelids (Segmented Worms) Arthropods Porifera (Sponges) Molluscs (Shells)
What decomposers live in estuaries?
Common Soil Bacteria Nematodes
What are the two traits that are common to arthropods?
Arthropods are characterized by an exoskeleton made from chitin, and joint appendages.
Is a segmented body common to all arthropods?
Yes, segmented bodies, an exoskeleton made from chitin, and joint appendages are common features of arthropods.
What are the most common invertebrates on earth and why?
Arthropods
What is one common function of an arthropods's antennae?
To smell
What is one common function of the arthropods?
Arthropods are a fairly wide-ranging classification of animals, covering everything from grub beetles to mosquitoes. One fairly common (though not universal) function of arthropods is to break down organic material into smaller molecules.
What is the common name for arthropods?
Those are Spiders!
