The Platyhelminthes includes three classes:
the Turbellaria (free-living flatworms), the Trematoda (flukes), and the Cestoda (tapeworms)
.
What are the major groups of platyhelminthes?
Platyhelminthes are traditionally divided into four classes:
Turbellaria, Monogenea, Trematoda, and Cestoda
(Figure 2).
What are 3 examples of platyhelminthes?
- Taenia (Tapeworms)
- Fasciola (Liver fluke)
- Taenia saginata (Beef tapeworm)
- Echinococcus granulosus – The dog tapeworm.
- Planeria (freshwater flatworm)
- Opistorchis.
How many species of platyhelminthes are there?
Most turbellarians are exclusively free-living forms.
More than 20,000 flatworm species
have been described.
What are the three main groups of flatworms?
Flatworm species are divided into three classes:
Turbellaria, Trematoda and Cestoda
.
Where are Platyhelminthes found?
Most freshwater flatworms are free-living and can be found in
ponds, lakes, streams, ditches, and temporary puddles
. They live under rocks, plants, and debris to avoid direct sunlight.
Who named Platyhelminthes?
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)
.
What is the basis of classification of Platyhelminthes?
Platyhelminthes are divided into four classes:
Turbellaria, free-living marine species
; Monogenea, ectoparasites of fish; Trematoda, internal parasites of humans and other species; and Cestoda (tapeworms), which are internal parasites of many vertebrates.
Which class of Platyhelminthes are not parasitic?
Turbellaria
.
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.
Which class of Platyhelminthes are free living?
The Platyhelminthes includes three classes:
the Turbellaria
(free-living flatworms), the Trematoda (flukes), and the Cestoda (tapeworms).
Can flatworms live in humans?
There are a variety of parasitic worms that can take
up residence in humans
. Among them are flatworms, thorny-headed worms, and roundworms. The risk of parasitic infection is higher in rural or developing regions. The risk is great in places where food and drinking water may be contaminated and sanitation is poor.
How can you avoid the infection of tapeworm?
- Wash your hands with soap and water before eating or handling food and after using the toilet.
- When traveling in areas where tapeworm is more common, wash and cook all fruits and vegetables with safe water before eating.
What are the two main types of flatworms?
There are three main types of flatworms:
flukes, planarians, and tapeworms
. Some flatworms are free living organisms, but most are parasitic.
What are the two examples of flatworms?
- Liver fluke.
- Planaria.
Are Turbellaria parasitic?
Members of all classes
except Turbellaria are parasitic during all or part of the life cycle
.
