The respiratory system of cockroach consists of--------

Options :
  1. a network of trachea
  2. a pair of lungs
  3. a pair of bronchioles
  4. a network of alveoli
Answer and Explanation :-

Answer: Option 1

Explanation:

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Nunca podemos juzgar la vida de los demás, porque cada uno sabe de su propio dolor y de su propia renuncia. Una cosa es suponer que uno está en el camino cierto otra es suponer que ese camino es el único.
-Paulo Coelho By the River Piedra I Sat Down and Wept