Everyday Science MCQs Biology
Q Gaseous exchange in birds occurs at level of_______________?
  • A A. Alveoli
  • B B. Air sacs
  • C C. Bronchi
  • D D. Parabronchi
Previous Animals of which class of arthropoda are present everyw…
Next ______________ of earth surface is covered with water?
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Word of the Day
12 Jul
Obdurate
stubbornly refusing to change one’s opinion or course of action.
آدی، بدکار، Ψ³Ω†Ϊ―Ψ―Ω„ΫŒ

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