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Question
Identify the phylum from the statements given below:
(i) Their body has circular cross section.(ii) They may be free-living, aquatic or terrestrial.(iii) They are parasitic in plants and animals.(iv) They are bilaterally symmetrical, triploblastic and pseudocoelomate.
Identify the phylum from the statements given below:
(i) Their body has circular cross section.
(ii) They may be free-living, aquatic or terrestrial.
(iii) They are parasitic in plants and animals.
(iv) They are bilaterally symmetrical, triploblastic and pseudocoelomate.
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Solution
The correct option is B Aschelminthes
Nematodes/Aschelminthes is a phylum of the animal kingdom that includes bilaterally triploblastic organisms. These organisms have a cylindrical bodies and hence a circular cross-section. They do not possess real organs and are pseudocoelomates. They are often characterized as being parasitic creatures in plants and animals and cause diseases. Some examples are Ascaris and Wuchereria.
Nematodes/Aschelminthes is a phylum of the animal kingdom that includes bilaterally triploblastic organisms. These organisms have a cylindrical bodies and hence a circular cross-section. They do not possess real organs and are pseudocoelomates. They are often characterized as being parasitic creatures in plants and animals and cause diseases. Some examples are Ascaris and Wuchereria.
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