11. The air tubes that an insect has are useful for the exchange of ................
12. The small openings in the body of a cockroach are called ...............
13. Name the gas which is used by white blood cells to kill the invading bacteria
14. In earthworms, the exchange of gases occurs through
15. In cockroach, air enters the body through
MCQ Multiple Choice Questions and Answers on Respiration in Organisms
Respiration in Organisms Trivia Questions and Answers PDF
Respiration in Organisms Question and Answer
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