What are 5 characteristics of Nematoda?


What are 5 characteristics of Nematoda?

Following are the important characteristics of Nematoda:

  • Their body is bilaterally symmetrical and triploblastic.
  • They are cylindrical in shape.
  • They exhibit tissue level organization.
  • Their body has a cavity or pseudocoelom.
  • The alimentary canal is distinct, with the mouth and the anus.
  • They are sexually dimorphic.

What are characteristic of nematode?

Nematodes are bilaterally symmetrical, elongate, and usually tapered at both ends. Some species possess a pseudocoel, a fluid-filled body cavity between the digestive tract and the body wall. Like arthropods and members of six other phyla, nematodes secrete an external cuticle that is periodically molted.

What defines nematode?

Definition of nematode : any of a phylum (Nematoda or Nemata) of elongated cylindrical worms parasitic in animals or plants or free-living in soil or water.

How do you classify nematodes?

Like many other organisms in kingdom Animalia (also referred to as metazoa) nematodes are eukaryotic, multicellular organisms that obtain nutrients from organic sources. Nematodes/roundworms make up the phylum Nematoda.

What are the unique characteristics of roundworms?

The two most prominent features that distinguish roundworms from flatworms are the presence of a pseudocoelom, or partially developed body cavity, and a complete digestive tract with two openings, a mouth and an anus.

What characteristics do roundworms share?

Features of Roundworms

  • Unlike the flatworms, the roundworms have a body cavity with internal organs.
  • A roundworm has a complete digestive system, which includes both a mouth and an anus.
  • Roundworms also have a simple nervous system with a primitive brain.

What are the general characteristics of the Aphasmids?

Mainly, they are free-living in soil and water; however, there are a few parasitic forms of aphasmids. As the alternate name implies, they do not have phasmids, and the amphids are located posteriorly on the head region. In fact, they have no sensory bristles or papillae on the head and body.

Which of the following are characteristics of nematodes quizlet?

Which of the following is a characteristic of nematodes? They have a gastrovascular cavity. Many species are diploblastic. All species can be characterized as scavengers.

Is Nematoda a class or phylum?


Nematode Temporal range:
Phylum: Nematoda Diesing, 1861
Chromadorea Enoplea Secernentea (see text)

What animals belong to the phylum Nematoda?

Roundworms, hookworms, and heartworms are all members of phylum Nematoda, and they are all common canine maladies.