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11th CBSE
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Aschelminthes differ from other phyla in 

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Important Questions on Phylum Aschelminthes or Nemathelminthes

HARD
11th CBSE
IMPORTANT
Companion Biology Class 11>Chapter 11 - Phylum Aschelminthes or Nemathelminthes>MULTIPLE CHOICE QUESTIONS>Q 16
 Nocturnal periodicity is exhibited by   
HARD
11th CBSE
IMPORTANT
Companion Biology Class 11>Chapter 11 - Phylum Aschelminthes or Nemathelminthes>MULTIPLE CHOICE QUESTIONS>Q 17

Identify the Phylum from the statements given below:

(i) They may be free living, aquatic and parasitic in plants and animals.

(ii) There body is circular in cross-section.

(iii) They are bilaterally symmetrical triploblastic and pseudocoelomate.