What is the classification of flatworm?
What is the classification of flatworm?
Platyhelminthes
Flatworm/Scientific names
flatworm, also called platyhelminth, any of the phylum Platyhelminthes, a group of soft-bodied, usually much flattened invertebrates. A number of flatworm species are free-living, but about 80 percent of all flatworms are parasitic—i.e., living on or in another organism and securing nourishment from it.
What are the classification of Turbellaria?
Turbellaria
Turbellaria/Scientific names
What is the scientific name for Polycladida?
Polycladida
Polycladida/Scientific names
What is the domain of flatworm?
Eukaryote
Flatworm/Domain
What are the main characteristics of flatworm?
The main characteristics of flatworms (Figure below) include:
- Flatworms have no true body cavity, but they do have bilateral symmetry.
- Flatworms have an incomplete digestive system.
- Flatworms do not have a respiratory system.
- There are no blood vessels in the flatworms.
Which classification fits a flatworm that is free living?
Turbellaria are free-living flatworms. This means that they are able to find and digest their own food, and they do not depend on a host organism. An example of a turbellarian is shown in Figure below.
What are some characteristics of the class Turbellaria?
Class Turbellaria(flatworms)
- True bilateral symmetry.
- Dorso-ventral flattening of the body.
- Unsegmented.
- Ciliated epidermis.
- System of sheathed nerve fibers.
- Parenchyma between the epidermis and the gastrodermis.
- Some cephalization.
- Blind ending gut.
Where are Polycladida found?
The Polycladida represents a highly diverse clade of free-living marine flatworms. They are known from the littoral to the sublittoral zone (extending to the deep hot vents), and many species are common from coral reefs. Only a few species are found in freshwater habitats.
Do marine flatworms eat crabs?
A video of a marine flatworm engulfing a crab at low tide has become viral on the internet. Marine flatworm engulfs a crab at low tide.”
What are the 3 classes of phylum platyhelminthes?
The Platyhelminthes includes three classes: the Turbellaria (free-living flatworms), the Trematoda (flukes), and the Cestoda (tapeworms).
Are flatworms endangered?
Not extinct
Flatworm/Extinction status
What is the classification of Polycladida?
An order of free-living marine flatworms. The Polycladida represents a highly diverse clade of free-living marine flatworms. They are known from the littoral to the sublittoral zone (extending to the deep hot vents), and many species are common from coral reefs.
What is the habitat of Polycladida?
An order of free-living marine flatworms. The Polycladida represents a highly diverse clade of free-living marine flatworms. They are known from the littoral to the sublittoral zone (extending to the deep hot vents), and many species are common from coral reefs. Only a few species are found in freshwater habitats.
What are the Predators of Polycladida?
Polycladida. Acotyleans are major predators of sessile marine invertebrates such as all commercial bivalves species (including pearl and rock oysters), mussels, scallops and giant clams. Many acotyleans are dull in coloration, and cryptic in their behavior, hiding in crevices and under coral during the day.
What is the size of a polyclad?
Polyclads range from 3 millimetres (0.12 in) to 10 centimetres (3.9 in) in length with a flattened, roughly oval, body shape and, in many cases, a pair of short tentacles on the head. They are distinguished from other related animals by the presence of a folded pharynx, an elongated intestine with numerous complex diverticula, and multiple ocelli.
