A) Tsar or Tussor silk is obtained by Bombay mori
B) Wucheria lbacrofti is digenetic nematodes viviparous
C) Leishmania a protozoan causes African sleeping sickness
D) World heart day is celebrated on last Sunday of October
Correct Answer: B
Solution :
Wucheira bancrofti, a viviparous nematode complete its life cycle in human (primary host) and mosquito Culex, or Aedes (intermediate host). Thus, it is digenetic. Tsar silk is obtained by Leishmania donovani causes kala-azar or Leishmaniasis, which is spreaded by send fly (Phlebotaomuspapatasi). World heart day is celebrated on last Sunday of September. Tasar silk moth is difficult to domesticate, so coconal tasar silk is obtained from forests.
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