1What is the structure of the body of the tapeworm, liver fluke and blood fluke?
2Do flatworms have a developed organ system?
3Where are the tapeworm, liver fluke and blood fluke found?
4What is the mode of nutrition of flatworms?
5Have you ever had roundworm (Ascaris) in your abdomen? How can a person get it?
6What is the structure of a roundworm like?
7Where are hookworms and pinworms found?
8Do roundworms harm the human body?
9Observe an earthworm, a leech and Nereis and discuss their features.
10Why are tapeworms called hermaphrodite animals?
11Give three differences between Platyhelminthes and Nemathelminthes.
12Why must an earthworm keep its skin moist?
13What are nephridia? In which phylum are they found?
14Both the roundworm and the earthworm are long and cylindrical. How do they differ?
15Why is the leech called an ectoparasite?