![Trachae of Cockroarch and mammal are similar in having](https://www.gkseries.com/blog/wp-content/uploads/2022/01/Trachae-of-Cockroarch-and-mammal-are-similar-in-having.png)
Q. Trachae of Cockroarch and mammal are similar in having
A. origin from head
B. paired nature
C. ciliated inner lining
D. noncollapsible walls
Answer: noncollapsible walls
A. origin from head
B. paired nature
C. ciliated inner lining
D. noncollapsible walls
Answer: noncollapsible walls
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