Give a reason for each of the following (a) The trachea of the tracheal system have circular rings of chitin (b) Tracheoles of the tracheal...

      

Give a reason for each of the following
(a) The trachea of the tracheal system have circular rings of chitin
(b) Tracheoles of the tracheal system lacks rings of chitin

  

Answers


Chrispoh
(a) To prevent the trachea from collapsing during contraction and relaxation of the abdominal muscles.
(b) To reduce the distance of diffusing gases.

chrispohmomanyi answered the question on February 19, 2018 at 09:10


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