Animalscaretips
Common name: flat worms Platyhelminthes are bilaterally symmetrical, soft-bodied and unsegmented animals, and are known as the 'flatworms' because they are often dorso-ventrally compressed.
- What is the common name for all Platyhelminthes?
- What is the local name of flatworm?
- Why Platyhelminthes are called Platyhelminthes?
- What is the common name of nematoda?
- What are the 4 classes of Platyhelminthes?
- What are the 3 classes of Platyhelminthes?
- What do Platyhelminthes eat?
- What is another name of phylum Aschelminthes?
- What is the scientific name of tapeworm?
- Why is phylum Annelida named so?
- Is an earthworm a nematode?
- Are nematodes arthropods?
- Why are Turbellarians named?
- Why are platyhelminthes called Acoelomate?
- Who named platyhelminthes?
What is the common name for all Platyhelminthes?
Platyhelminthes are commonly known as flatworms or tapeworms. They are a group of soft-bodied invertebrate animals.
What is the local name of flatworm?
The flatworms, flat worms, Platyhelminthes, or platyhelminths (from the Greek πλατύ, platy, meaning "flat" and ἕλμινς (root: ἑλμινθ-), helminth-, meaning "worm") are a phylum of relatively simple bilaterian, unsegmented, soft-bodied invertebrates.
Why Platyhelminthes are called Platyhelminthes?
The animals of phylum Platyhelminthes have their bodies dorsoventrally flattened. Because they appear flat, they are called flatworms.
What is the common name of nematoda?
Commonly known as roundworms, nematodes are a group of worms that make up the phylum Nematoda.
What are the 4 classes of Platyhelminthes?
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 3 classes of Platyhelminthes?
Phyla Platyhelminthes and Nemertea. The Platyhelminthes includes three classes: the Turbellaria (free-living flatworms), the Trematoda (flukes), and the Cestoda (tapeworms).
What do Platyhelminthes eat?
They feed on tunicates, small crustaceans, worms, and molluscs. These flatworms feed like sea stars, extruding their pharynx, which secretes enzymes to digest their prey.
What is another name of phylum Aschelminthes?
The Aschelminthes (also known as Aeschelminthes, Nemathelminthes, Nematodes), closely associated with the Platyhelminthes, are an obsolete phylum of pseudocoelomate and other similar animals that are no longer considered closely related and have been promoted to phyla in their own right.
What is the scientific name of tapeworm?
tapeworm, also called cestode, any member of the invertebrate class Cestoda (phylum Platyhelminthes), a group of parasitic flatworms containing about 5,000 species.
Why is phylum Annelida named so?
The name of the phylum is derived from the Latin word annellus, which means a small ring. ... The phylum includes earthworms, polychaete worms, and leeches. Annelids show protostomic development in embryonic stages and are often called “segmented worms” due to their key characteristic of metamerism, or true segmentation.
Is an earthworm a nematode?
This phylum is called Nematoda. ... This phylum is called Annelida. Among these are the earthworms and the bristle worms of the sea.
Are nematodes arthropods?
Nematodes are in the same phylogenetic grouping as the arthropods because of the presence of an external cuticle that protects the animal and keeps it from drying out. There are an estimated 28,000 species of nematodes, with approximately 16,000 of them being parasitic.
Why are Turbellarians named?
In this classification the Turbellaria include the Acoelomorpha (Acoela and Nemertodermatida). The name "Turbellaria" refers to the "whirlpools" of microscopic particles created close to the skins of aquatic species by the movement of their cilia.
Why are platyhelminthes called Acoelomate?
Flatworms are called acoelomate animals. They do not possess a body cavity or coelom Since there is no body cavity in these animals their body is solid without a perivisceral cavity.
Who named platyhelminthes?
Platyhelminthes (pla-te-hel-MIN-thes) is made of two Greek roots that mean "flat worms" [flat -plato (πλάτω); and worm -helmis (ελμισ)]. The reference is to the flattened nature of the animals in this phylum. The name was coined by Gegenbaur (1859).
