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CSS :: Phylum Annelida


11.  Trocophore larva is found in:
A. Cnidarians B. Cockroach
C. Annelids D. Sponges

12.  Crawling in annelids occurs by:
A. Prostomium B. Setae
C. Papilla D. Clitellum

13.  Setae are found in:
A. Earthworms B. Leeches
C. Both (a) & (b) D. None of these

14.  Locomotion in earthworms is dirctly facilitated by:
A. Mucus secreted by epidermis B. Segmentation of body
C. Rhythmic contractions of body segments D. Setae only

15.  Earthworms respire through:
A. Ctenidia B. Moist skin
C. Clitellum D. Prostomium

16.  Number of body segments is fixed in:
A. Eathworms B. Leeches
C. Tape-worms D. None of these

17.  Which of the following is an ectoparasite:
A. Cockroach B. earthworm
C. Leech D. None of these

18.  Segmentation in annelids is called:
A. Strobilation B. Metamerism
C. Pseudosegmentation D. None of these

19.  Structures typically found in every segment of earthworm are:
A. Ganglia B. Lateral hearts
C. Gerutal duct D. Septal nephridia

20.  A skeleton like function is performed in earthworms during locomotion by:
A. Alimentary canal laden with mud B. Coelomic fluid
C. Clitellum D. Ventral nerve cord




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