What are 3 examples of platyhelminthes?
What are 3 examples of platyhelminthes?
Platyhelminthes Examples
- Taenia (Tapeworms)
- Fasciola (Liver fluke)
- Taenia saginata (Beef tapeworm)
- Echinococcus granulosus – The dog tapeworm.
- Planeria (freshwater flatworm)
- Opistorchis.
How do platyhelminthes reproduce?
Flatworms are hermaphroditic (having both male and female sex organs) and they typically reproduce both sexually and asexually. The majority of sexual reproduction is through cross-fertilization (where both individuals fertilize each other).
What are 2 examples of flatworms?
Flatworm species include:
- Turbellaria.
- Tapeworms.
- Polycladida.
- Hymenolepis.
- Girardia tigrina.
Which type of reproduction is found in planaria?
Asexual
Asexual freshwater planarians reproduce by tearing themselves into two pieces by a process called binary fission. The resulting head and tail pieces regenerate within about a week, forming two new worms.
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.
How do platyhelminthes eat?
Each flatworm is different in terms of food consumption, but most platyhelminthes absorb nutrients by consuming them through a mouth. Food travels into a gut-type structure that holds and digests it. Once the food is broken down, the digestive system passes it all through the body.
Which of the following is an example of a flatworm phylum Platyhelminthes )?
1. The Phylum Platyhelminthes (flatworms) includes planarians (Class Turbellaria), tapeworms (Class Cestoda), and flukes (Class Trematoda). The planarians are harmless, free-living flatworms. They live in an aquatic environment (freshwater or marine) or on moist soil.
Are leeches examples of flatworms?
Planaria are a type of flatworm that are mostly scavengers whose bodies are not in segments. Leeches (often misspelled leach or leaches) are flattened segmented worms with a sucker on both tail and mouth.
What do Mosses use to reproduce?
Mosses reproduce by spores, which are analogous to the flowering plant’s seed; however, moss spores are single celled and more primitive than the seed.
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.
How do Platyhelminthes reproduce?
Speaking more about phylum platyhelminthes, reproduction takes place by means of asexual and sexual methods. Just like other bodily systems, the platyhelminthes reproductive system is very simple to understand. Let’s take a look at reproduction processes of platyhelminthes.
What are the characteristics of the phylum Platyhelminthes?
The members of the phylum Platyhelminthes are commonly known as flatworms. They exhibit the following characteristics: They are free-living, ectoparasitic and endoparasitic worms. Some are aquatic, and some have terrestrial habitats. They show bilateral symmetry, and their body is unsegmented and dorsoventrally flat.
Do Platyhelminthes have excretory pores?
Excretory System: Though platyhelminthes do not have an anus for excretion, they do have excretory pores. In the excretory system, there are flame cells (enlarged cells) which have tube like structures called protonephridia.
Who coined the term ‘Platyhelminthes’?
The term ‘ Platyhelminthes’, which means flatworms, was coined by the scientist Gegenbaur. Modern Latin (plural), from ‘ platy’, means ‘ flat’ + Greek ‘ helminth’ means ‘worm’. Scientists believe that the first turbellarians evolved around \\ (550\\) million years ago.
