What are the four classes of platyhelminthes?
Turbellaria, Trematoda, Monogenea, Cestoda
To which class to Planaria belong?
Turbellaria
To which class do Parasitic flukes belong?
Trematoda
To which class do external parasites of fish belong?
Monogenea
To which class do tapeworms belong?
Cestoda
Where do tapeworms live in their adult form?
Intestines of mammals
What is the body shape of a cestoda?
Flattened, Segmented
What contain full monoecious reproductive systems in cestoda?
Proglottids
From which uncooked meat(s) can you get a tapeworm?
Pork, Beef
What do Monogenea infect?
Fish
Where does the larval form of Monogenea inhabit?
Aquatic Environments
What are the 5 adaptations for parasitism present in Trematoda?
Penetration glands, Glands to make cysts, Hooks and suckers for adhesion, Tough tegument to protect from digestive enzymes Increased reproductive capacity
What type(s) of reproduction do Trematoda undergo and in which host(s)?
Sexual, Intermediate (Sheep), Asexual, Difinitive host (humans)
Do planarians have regenerative abilities?
Yes, if cut in half
Internal fertilisation occurs in all classes except for which?
Turbellaria
Which of the classes is/are non parasitic?
Turbellaria
How many hosts do Trematoda have?
2
How many hosts do Cestoda have?
2
How many hosts do Monogea have?
1
What type of body cavity do Platyhelminthes have? (Acoelom, Pseudocoelom or a true coelom)
Acoelom
Where is the pharynx of a Turbellarian?
Midway down the body
What is the main process of the excretory system of platyhelminthes?
Diffusion
What is the secondary method of nitrogenous waste excretion of platyhelminthes, mainly used for osmoregulation?
Excretion via protonephridia
Descrive the digestive system of platyhelminthes?
Gastrovascular cavity
Describe the digestive system of Cestoda?
Non-existent
Are Platyhelminthes diplo or triploblastic?
Triploblastic
What are the visual sense organs of platyhelminthes?
Eyespots
What are the components of the flatworm nervous system?
Paired ganglia, longitudinal nerve cords
What do the respiratory and circulatory system of platyhelminthes rely on?
Diffusion
Where are flame cells located?
Protonephridia