Ascaris is characterized by which of the following?
Correct answer: D. Absence of true coelom and metamerism
- A. Presence of true coelom and metamerism
- B. Presence of true coelom but the absence of metamerism
- C. Absence of true coelom but the presence of metamerism
- D. Absence of true coelom and metamerism
Explanation
Ascaris belongs to phylum Aschelminthes. It lacks a true coelom, possesses pseudocoelom and body is not metamerically segmented.
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About Kingdom Animalia
Animals are multicellular, heterotrophic eukaryotes whose cells lack cell walls and chloroplasts, with specialised tissues in most groups. Coverage includes body symmetry, tissue layers, coelom, segmentation and levels of organisation, plus major phyla such as Porifera, Cnidaria, Platyhelminthes, Annelida, Arthropoda, Mollusca and Chordata.
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