These tubes take the oxygen to other parts of the insect body. Because insects have no lungs, air comes in and goes out of the spiracles passively (by itself). Some insects can open and close the spiracles to keep water out.
ð iː z WORD_BOUNDARY t uː b z WORD_BOUNDARY t eɪ k WORD_BOUNDARY ð ɪ WORD_BOUNDARY ɑ k s ɪ d̠ʒ ə n WORD_BOUNDARY t ʊ WORD_BOUNDARY ʌ ð ə ɹ WORD_BOUNDARY p ɑ ɹ t s WORD_BOUNDARY ʌ v ð ɪ WORD_BOUNDARY ɪ n s ɛ k t WORD_BOUNDARY b ɑ d i WORD_BOUNDARY b ɪ k ʌ z WORD_BOUNDARY ɪ n s ɛ k t s WORD_BOUNDARY h æ v WORD_BOUNDARY n oʊ WORD_BOUNDARY l ʌ ŋ z WORD_BOUNDARY ɛ ɹ WORD_BOUNDARY k ʌ m z WORD_BOUNDARY ɪ n WORD_BOUNDARY æ n d WORD_BOUNDARY ɡ oʊ z WORD_BOUNDARY aʊ t ə v WORD_BOUNDARY ð ə WORD_BOUNDARY s p ɪ ɹ ə k ə l z WORD_BOUNDARY p æ s ɪ v l i WORD_BOUNDARY b aɪ WORD_BOUNDARY ɪ t s ɛ l f WORD_BOUNDARY s ʌ m WORD_BOUNDARY ɪ n s ɛ k t s WORD_BOUNDARY k æ n WORD_BOUNDARY oʊ p ə n WORD_BOUNDARY æ n d WORD_BOUNDARY k l oʊ s WORD_BOUNDARY ð ə WORD_BOUNDARY s p ɪ ɹ ə k ə l z WORD_BOUNDARY t ə WORD_BOUNDARY k iː p WORD_BOUNDARY w ɔ t ə ɹ ɹ WORD_BOUNDARY aʊ t WORD_BOUNDARY