What phylum includes Planarians?

What phylum do tapeworms belong to?

Tapeworm, also called cestode, any member of the invertebrate class Cestoda (phylum Platyhelminthes), a group of parasitic flatworms containing about 5,000 species.

What phylum are flukes and tapeworms in?

There are more than 25,000 species in the flatworm phylum. Platyhelminthes. Platyhelminthes include flatworms, tapeworms, and flukes.

Which phylum include the parasite animals?

Phylum Platyhelminthes
Phylum Platyhelminthes belongs to kingdom Animalia. This phylum includes 13,000 species. The organisms are also known as flatworms. These are acoelomates and they include many free-living and parasitic life forms.

How does a tapeworm absorb its food?

Tapeworms do not have a digestive tract. Instead, they absorb their nutrients from the gut contents of the host directly through their outside surface, tegument.

What is the function of hooks in tapeworm?

tapeworms. …series of identical segments called proglottids. The head, or scolex, bears suckers and often hooks, which are used for attachment to the host. The body covering is a tough cuticle, through which food is absorbed.

What are the 4 classes of flatworms?

Some modern evidence suggests that at least some flatworm species may be secondarily simplified from more complex ancestors. The phylum consists of four classes: Trematoda (flukes), Cestoda (tapeworms), Turbellaria (planarians), and Monogenea.

What are the two main types of flatworms?

There are four major classes of flatworms such as Cestoda (tapeworms), Turbellaria (planarians), Trematoda (flukes), and Monogenea. The class Turbellaria (planarians) is free-living. Cestoda (tapeworms) and Trematoda (flukes) are parasitic. Planarian is also known as Dugesia and lives in freshwater.

What’s the difference between a tapeworm and a planarian?

Meanwhile, tapeworms are segmented parasitic flatworms of the class Cestoda which reside on the intestines of animals including humans. Platyhelminthes is a phylum which consists of thin, soft worms, possessing the shape of a leaf or ribbon-like structure. Platyhelminthes are also known as flatworms.

What kind of organism is a tapeworm?

Tapeworms belong to the class Cestoda. They are long, slender and elongated organisms which vary in length from 2mm to 10m. They consist of a segmented body, and the segments are referred to as proglottids. The main segments of the tapeworms are termed as the scolex, neck and strobila.

What are the different types of Platyhelminthes called?

The phylum Platyhelminthes consist of three different classes: Turbellaria, Cestoda and Trematoda. Class turbellaria is composed of many free-living organisms, while some are parasitic. Trematodes are commonly known as flukes. They are parasitic flatworms with an unsegmented body. Tapeworms are referred to as cestodes.

What’s the difference between a trematode and a tapeworm?

Class turbellaria is composed of many free-living organisms, while some are parasitic. Trematodes are commonly known as flukes. They are parasitic flatworms with an unsegmented body. Tapeworms are referred to as cestodes. They have a segmented ribbon-like body, and they are parasitic.