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1. Radial symmetry is observed in
A. Coelenterates
B. Platyhelminthes
C. Annelids
D. Echinoderms
2. In contrast to the Annelids, the Platyhelminthes show:
A. Bilateral symmetry
B. Absence of body cavity
C. Presence of pseudocoel
D. Radial symmetry
3. Ascaris is characterised by
A. Presence of true coelom and metamerism
B. Presence of neither true coelom nor metamerism
C. Absence of true coelom and presence of metamerism
D. Presence of true coelom but absence of metamerism
4. Which is the only phylum in kingdom Animalia without any nerve cell?
A. Nematoda
B. Porifera
C. Annelida
D. Coelenterata
5. Which of the following is a pseudocoelomate?
A. Flatworm
B. Tapeworm
C. Hydatid worm
D. Roundworm
6. Choose the correct pair:
A. Radial symmetry - Coelenterates
B. Triploblastic - Sponges
C. Metamerism - Mollusca
D. Metagenesis - Echinoderms
7. Pseudocoelom occurs in
A. Fasciola hepatica
B. Ascaris
C. Planaria
D. Taenia solium
8. Pseudocoelomate among these is
A. Aschelminthes
B. Mollusca
C. Annelida
D. Porifera
9. In which triploblastic animal, coelom is absent?
A. Annelids
B. Arthropods
C. Platyhelminthes
D. Aschelminthes
10. Metameric segmentation is the main feature of
A. Arthropoda
B. Coelenterata
C. Echinodermata
D. Annelida
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