Radial symmetry is observed in
  • Floral characters
  • Chemical constituents
  • Morphological features
  • Evolutionary relationships
In contrast to the Annelids, the Platyhelminthes show:
  • Coelenterates
  • Platyhelminthes
  • Annelids
  • Echinoderms
Ascaris is characterised by
  • Bilateral symmetry
  • Absence of body cavity
  • Presence of pseudocoel
  • Radial symmetry
Which is the only phylum in kingdom Animalia without any nerve cell?
  • Presence of true coelom and metamerism
  • Presence of neither true coelom nor metamerism
  • Absence of true coelom and presence of metamerism
  • Presence of true coelom but absence of metamerism
Which of the following is a pseudocoelomate?
  • Nematoda
  • Porifera
  • Annelida
  • Coelenterata
Choose the correct pair:
  • Flatworm
  • Tapeworm
  • Hydatid worm
  • Roundworm
Pseudocoelom occurs in
  • Radial symmetry - Coelenterates
  • Triploblastic - Sponges
  • Metamerism - Mollusca
  • Metagenesis - Echinoderms
  • Coelomates - Aschelminthes
In which triploblastic animal, coelom is absent?
  • Platyhelminthes
  • Aschelminthes
  • Annelida
  • Arthropoda
Metameric segmentation is the main feature of
  • Annelids
  • Arthropods
  • Platyhelminthes
  • Aschelminthes
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