Which of the following is/are the characteristic/s of nematodes?
a) body is long and cylindrical tapering at both ends
b) bilateral symmetrical and triploblastic
c) they pseudocoelomates and non-segmented
d) all of these
Explanation: a hard layer of cuticle is present on the body for protection
Which of the following system/s is/are absent in nematodes?
a) circulatory system
b) respiratory system
c) excretory and digestive
d) both a and b
Why nematodes show specific type of whipping movements?
a) the muscles are arranged in four longitudinal bands
b) circular muscles are absent
c) both a and b
d) none of them
Which of the following is/are true about nematodes?
a) sexes are generally separate and males are smaller than females
b) power of regeneration is absent
c) the alimentary canal is well developed with mouth and anus
d) all of these
Ascaris lumbricoides belongs to ………
a) Class Nematoda
b) Class Rotifera
c) Class Gastrotricha
d) Class Nematomorpha
Explanation: it is an endoparasite in the small intestine of man
Which
of the following is commonly called pinworm?
a) Ascaris lumbricoides
b) Enterobius
vermicularis
c) Taenia saginata
d) Fasciola hepatica
Explanation: it mostly parasitizes children which ingest its eggs with soil
