Ascaris is characterized by:
Correct answer: D. Presence of neither true coelom nor metamerism
- A. Presence of true coelom but absence of metamerism
- B. Presence of true coelom and metamerism (metamerisation)
- C. Absence of true coelom but presence of metamerism
- D. Presence of neither true coelom nor metamerism
Explanation
Ascaris belong to the Phylum Nematoda of Superphylum Aschelminthes.They have a cylindrical body without showing any metamerism, a pseudocoelom (false coelom) and a complete digestive tract lined by endodermal epithelium. The cuticle covering the body surface bears minute transverse striations giving a pseudosegmented appearance to the worm.
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