Title: What is the Difference Between Cestodes and Nematodes - Pediaa.Com
Headings: What is the Difference Between Cestodes and Nematodes
What is the Difference Between Cestodes and Nematodes
Key Areas Covered
Key Terms
Cestodes – Definition, Characteristics, Behavior
Figure 1: Cestoda Life Cycle
Nematodes – Definition, Characteristics, Behavior
Figure 2: Nematoda Life Cycle
Similarities Between Cestodes and Nematodes
Difference Between Cestodes and Nematodes
Definition
Taxonomy
Also Known as
Number of Species
Type of Protostomes
Coelom
Size
Shape
Cuticle
Segments
Mouthparts Anatomy
Mouthparts Function
Digestive System
Locomotion
Reproduction
Parasitic Species
Pathological Conditions
Transmission
Pathology
Diagnosis
Examples
Conclusion
References:
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Content: Nematodes – Definition, Characteristics, Behavior
Nematodes or roundworms are a diverse group of worms that belong to the phylum Nematoda. Generally, they live freely in freshwater, saltwater, and soil while others are parasitic in animals, including vertebrates and plants. For instance, nematodes have a long thin unsegmented tube-like body. Also, they are pseudocoelomates with a fluid-filled body cavity, acting as a hydrostatic skeleton providing rigidity. Figure 2: Nematoda Life Cycle
Moreover, nematodes have an anterior mouth and a longitudinal digestive tract. Significantly, in the head, they have lips, teeth, filariform extremities, and dentary plates for both attachment and sucking liquids from walls of the digestive system of the host. In the meanwhile, their digestive system lacks a stomach. On the other hand, the body of nematodes is covered by a thick, collagenous cuticle. Basically, some of the examples of parasitic roundworms are ascarids (Ascaris), filarias, hookworms, pinworms (Enterobius), and whipworms (Trichuris trichiura).