821. Nervous system of nematods consists of?
A. Ventral nerve cord
B. Dorsal nerve cord
C. Lateral nerve cord
D. All of these

822. Polychaeta have____________?
A. Tentacles
B. Palps
C. Eyes
D. All of these

823. __________ are believed to have common origin with annelids.
A. Nematods
B. Arthropods
C. Molluscs
D. None of these

824. Mantle in molluscs is present over____________?
A. Head
B. Ventral muscular foot
C. Dorsal visceral region
D. All of these

825. Prechordates is another name used for___________?
A. Echinoderms
B. Hemichordates
C. Vertebrates
D. Chordates

826. True metamorphosis is not present in________?
A. Crustacea
B. Insecta
C. Arachnida
D. Myriapoda

827. Pin warm is common name used for__________?
A. Rhabditis
B. Enterobius vermicularis
C. Ancylostoma duodenale
D. Taenia solium

828. Which system is present in nematodes?
A. Sac – like digestive system
B. Tube – like digestive system
C. Circulatory system
D. Respiratory system

829. Which of following system is segmentally arranged in annelids?
A. Excretory system
B. Digestive system
C. Criculatory system
D. Nervous system

830. The organs of locomotion in annelids are__________?
A. Muscles
B. Hydrostatic skeleton
C. Parapodia
D. Setae

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