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Zoology Questions and Answers

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246. Migratory birds can be seen in this sanctuary of Tamil Nadu
 
  • A. vallanadu sanctuary
  • B. kodaikanal sanctuary
  • C. mudumalai wild life sanctuary
  • D. mundanthuraiwild life sanctuary
 
247. The length of blood vessels in a human body is
 
  • A. 10,000 km
  • B. 50,000 km
  • C. 96,000 km
  • D. six feet
 
 
248. The best variety of silk is got from ---- worms.
 
  • A. tassar
  • B. muga
  • C. eri
  • D. mulberry
 
249. Snake venom is used as
 
  • A. poison
  • B. medicine
  • C. hormone
  • D. fertilizer
 
250. The ratio between birth rate and death rate is called
 
  • A. natality
  • B. mortality
  • C. vital–index
  • D. age–pyramids