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Placenta is the structure formed :

  • by fusion of germ layers
  • by foetus only
  • by the union of foetal and uterine tissue
  • by uterine only
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  • 7
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2. White blood corpuscles are used by our body ?

  • to carry oxygen
  • to dissolve protiens
  • to combat infection
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3. Oxygen in our blood is transported by ?

  • Keratin
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  • Myoglobin
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4. Milk is poor source of

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5. Non-clotting of blood is caused by deficiency of ?

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