What is the class to which the flukes belong? Write short notes on the chief characteristics of that group.
Answers
Answered by
4
The flukes (Trematoda) are a class of parasitic worms belonging to the phylum Platyhelminthes.
The simplest animals that are bilaterally symmetrical and triploblastic (composed of three fundamental cell layers) are the Platyhelminthes, the flatworms. Flatworms have no body cavity other than the gut (and the smallest free-living forms may even lack that!) and lack an anus; the same pharyngeal opening both takes in food and expels waste. Because of the lack of any other body cavity, in larger flatworms the gut is often very highly branched in order to transport food to all parts of the body. The lack of a cavity also constrains flatworms to be flat; they must respire by diffusion, and no cell can be too far from the outside, making a flattened shape necessary.
The simplest animals that are bilaterally symmetrical and triploblastic (composed of three fundamental cell layers) are the Platyhelminthes, the flatworms. Flatworms have no body cavity other than the gut (and the smallest free-living forms may even lack that!) and lack an anus; the same pharyngeal opening both takes in food and expels waste. Because of the lack of any other body cavity, in larger flatworms the gut is often very highly branched in order to transport food to all parts of the body. The lack of a cavity also constrains flatworms to be flat; they must respire by diffusion, and no cell can be too far from the outside, making a flattened shape necessary.
Answered by
6
The class to which the organism called fluke belongs is Platyhelminthes.
Listed below are few chief features of this group :
1. This class has another name, that is, flatworms. It is because the body of the members of this group is flat in dorsal as well as ventral positions.
2. They are found as endoparasites can be seen in humans also.
3. The members which are parasites possesses hooks.
4. Platyhelminthes group has special cells which are termed as flame cells. These cells aids in excretion and osmoregulation.
5. Examples are : Taenia and Fasciola.
Similar questions