Animal Kingdom Question 531
Question: Spiracles of Cockroach which are larger and always kept open are [RPMT 1998]
Options:
A) First and second pairs
B) First and third pairs
C) First and tenth pairs
D) Second and third pairs
Show Answer
Answer:
Correct Answer: B
Solution:
In cockroach, the tracheal system opens outside by ten pairs of spiracles.
The first and third pairs spiracles remain open all the times.
BETA
