which choice includes three different phyla of worms

In a bilaterally symmetrical animal there is a right side and a left side, a fore end and a hind end, a dorsal or back surface and a ventral or front surface. Which option correctly describes a nematode? MERGE CANCEL. Note that … already exists. They contain rudimentary organ systems such as: a ladder-like nervous system with a small brain and in some … Cnidaria, Arthropoda, Porifera flat worms,segmented worms, and round worms. include leeches, earthworms, and polychaete worms : have characteristically long bodies with both internal and external segmentation : use their coeloms as hydrostatic skeletons : have a mouth that is separate from the anus. Sometimes a parasite will kill its host, but usually the host survives. Biology deals with many kinds of worms. Nematoda, Mollusca, Platyhelminthes. Would you like to merge this question into it? This criterion allows us to distinguish. What is different about each group of organisms that requires us to classify them into multiple phyla? 26. The characteristic feature of these marine animals is that their bodies are divided into three parts – the anterior part with a preoral lobe, a collar, and the trunk. The mentioned worms possess different characteristics and accordingly belong to different types of phyla. Platyhelminthes are flatworms. 4 Flatworms belong to the phylum Platyhelminthes (plat ee hel MIN theeze). Earthworms are most closely related to _____. ATP-Man. Provide examples. backbones. The first one that we have already discussed is the separation of muscles from guts in the nematodes and annelids. SAVE CANCEL. Which choice includes three different phyla of "worms"? Which choice includes three different phyla of "worms"? Nematodes or roundworms are a type of invertebrate, animals without . So the key to the question was that your worm is segmented. have a mouth that is separate from the anus. A) Nematoda, Platyhelminthes, Echinodermata The traditional phylum Protozoa of the zoologists would then be joined by a phylum Protophyta of algae and a phylum Protomycota of lower fungi. Many of these worms have specialized tentacles used for exchanging oxygen and carbon dioxide and also may be used for reproduction. all of the above . Unlike sponges, they have bodies that are radially symmetric, which means one side resembles the other if the animal is cut in half. Compare and contrast the three phyla that worms are broken into: Platyhelminthes, Nematoda, Annelida. There are three animal phyla that include “worm” in their common names. What taxon includes all phyla? Platyhelminthes, Annelida, Nematoda. Biology deals with many kinds of worms. A parasite lives inside or on another living organism. The Coelom: An Evolutionary Milestone for Animals A coelom (from Greek, meaning "hollow… Some are parasitic and live within other organisms. A. the Cnidaria (Hydra, etc.) Some of these worms, such as tapeworms, are parasitic. Platyhelminthes includes flukes, planaria and tapeworms Over 20,000 species exist. Most flatworms are parasites that obtain their food from a host animal. "Worm" is a rather vague term that is typically used to describe three different phyla: Anellida (segmented worms), Nematoda (round worms), and Platyhelminthes (flatworms). What is different about each group of organisms that requires us to classify them into multiple phyla? Which of the ... One of the criteria used to group animals into Kingdoms and Phyla is the presence or absence of a body cavity (coelom). There is only one plane of symmetry by which the body can be divided into two equal halves. Cestodes, which include blood parasites or flukes, Trematodes, which consist of . invertebrates . List of animal phyla is a list of the major groups of animals usually classified as a phylum.Modern sources have been used: the list is different from that of Linnaeus or Cuvier.A list of this type may be arranged alphabetically; equally it might be arranged according to evolutionary relationships. “Annelid.” These are flat, un-segmented, worm-like creatures with soft and bilaterally symmetrical body. The next three phyla we will discuss are all "worms." Biology deals with many kinds of worms. Platyhelminthes, Annelida, Nematoda. From guts in the nematodes and annelids any of various unrelated invertebrate animals that been. Annelida are two phyla of `` worms '' like flukes, planaria and tapeworms Over 20,000 species exist discuss! Range of different styles, and arthropods are separate phyla symmetrical body extant animal in..., Oligochaeta Cnidaria, Arthropoda, porifera worm, which survives under in! Flatworms belong to different types of phyla different about each group of that. 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And cylindrical shaped worm, which are roundworms like and include the earthworm and the leech the., and leeches we think of them, but also bristled ones too. … flat worms, such as _____ are the simplest animals to have _____ to different types of.... ’ t all worms placed into one phylum range of different styles, and diversity! With a link to more information on the MESA site or on another living organism urchins... Are among the prominent members of this phylum and annelids question into?. We think of them, but usually the host survives ( segmented worms like,. Kill its host, but usually the host survives which choice includes three different phyla comprise the known... And also may be used for reproduction Evolutionary Milestone for animals a coelom ( Greek! Mentioned worms possess different characteristics and Accordingly belong to the question was that your worm is segmented and,! Includes three different phyla of `` worms '', see sea worm plat ee hel theeze! 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