How many species of flatworms are there?

How many species of flatworms are there?

More than 20,000 flatworm species have been described.

What are the 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 is the most common flatworm?

The most common marine flatworms belong to a different group called polyclads (or Polycladida). Triclads and polyclads are all free-living (i.e., they are not parasites). Polyclads are found in most marine habitats, usually on the sea floor among algae, corals, or rocky reefs.

Is a Planaria a flatworm?

Planaria (Platyhelminthes) are free-living flatworms that live in freshwater. They are typically found under rocks and debris in streams, ponds, and springs.

What are three examples of flatworms?

Examples of flatworms: Liver fluke Planaria

  • Liver fluke.
  • Planaria.

What are the 3 classes of Platyhelminthes?

The Platyhelminthes includes three classes: the Turbellaria (free-living flatworms), the Trematoda (flukes), and the Cestoda (tapeworms).

What are 3 types of flatworm?

The Phylum: Platyhelminthes includes the flatworms (Planaria, flukes & tapeworms) Three Classes treated here are Turbellaria, Trematoda and Cestoda.

Is a tapeworm a flatworm?

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

What are 2 parasitic flatworms?

While there are several parasitic flatworms, tapeworms and flukes are the two most commonly studied types. These flatworms are capable of causing diseases in different host organisms, such as fish, dogs, domesticated animals, and humans.

What is one example of a flatworm?

Flatworms (Platyhelminthes) are a group of bilaterally symmetrical, acoelomate, soft-bodied invertebrate animals found in marine, freshwater as well as moist terrestrial environments. Flatworm species include: Turbellaria. Tapeworms.

What kingdom is Planaria in?


What are the two examples of flatworms?

What are examples of flatworms?

Some flatworms are free-living and commonly found in freshwater habitats. Others are parasitic and often pathogenic organisms that live within other animal organisms. Examples of flatworms include planarians, flukes, and tapeworms. Ribbon worms of the phylum Nemertea have historically been considered to be acoelomates.

What are flatworms characteristics?

Flatworms have amazingly interesting characteristics. Flatworms, like all worms, are invertebrates with bilateral symmetry, meaning they have fronts and backs. Flatworms are soft and paper thin (The most defining characteristic, hence their name).

Is a flatworm a parasite?

Most of the known species of flatworms are parasitic and some may cause significant harm to both humans and livestock. One of the most devastating diseases in human, caused by the parasite is Schistosomiasis , which is a major cause of acquired epilepsy worldwide. Flatworms are common in lightly cooked food and foods imported from high-risk areas.

What are flatworms habitat?

Habitat. Depending on their characteristics, flatworms can be found in either salty or freshwater bodies of water. They can also be found in terrestrial habitats, as long as these are quite humid, some of them may even inhabit the sand of the watery bottoms. A good part of them are benthic, coexisting at the bottom of the waters on rocks or mixed with algae.