Segmented animals belong primarily to the phyla Annelida (e.g., earthworms and leeches) and Arthropoda (e.g., insects, Spiders, and crustaceans). Additionally, the phylum Chordata includes segmented structures in some of its members, such as vertebrates. Segmentation allows for specialization of body regions and can enhance mobility and functionality.
To increase the ease for Locomotion.
The man kinds of plylas' are flatworms, roundworms, and segmented worms.
flat worms,segmented worms, and round worms.
Annelids are segmented worms. Being segmented is what generally differentiate them from the other worms. One of the most basic example is an earthworm.
There are five main phyla in the animal kingdom: Porifera (sponges), Cnidaria (jellyfish, corals), Platyhelminthes (flatworms), Annelida (segmented worms), and Arthropoda (insects, spiders).
Two other phyla members of a roundworm are Nematoda and Nematomorpha. They are both non-segmented worms that belong to the superphylum Ecdysozoa along with roundworms (phylum Rotifera).
phulum Annelida and phylum Arthropoda have segmented bodies and only phylum Annelida has closed circulatory system while Arthropodes have open circulatory system
It depends what type of warm you are referring to. Flatworms belong Platyhelminthes Tubeworms belong to Nematodes and Segmented worms belong to Annelids Centipedes and Millipedes are not worms. They belong to the Arthropod Phylum.
In no particular order: Chordates Echinodermata Platyhelminthes (Flatworms) Nematodes (Roundworms) Annelids (Segmented Worms) Arthropods Porifera (Sponges) Molluscs (Shells)
The three main phyla under protostomes are Annelida (segmented worms), Mollusca (mollusks), and Arthropoda (arthropods). These organisms share a common characteristic of developing their mouths from the first opening formed during embryonic development.
Animals with a segmented body plan belong to the phyla Arthropoda, Annelida, and Chordata. Segmentation involves the repetition of body units along the length of the organism, which can be seen in arthropods with their jointed limbs, annelids with their repeated segments, and chordates during embryonic development.
Annelids are the first animal phyla to have a true body cavity (coelom), which is enclosed by mesoderm. This cavity enables more complex organ systems and allows for greater specialization of body functions.