explain why the blood of an insect does not contain respiratory pigments
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Insects do not use respiratory pigments to transport oxygen, rather they have branching tubes called trachae that suck in air. These carry oxygen straight to the tissues. Insect blood is not important for circulation of respiratory gases. Hence they do not have a respiratory pigment.
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Insects do not use respiratory pigments to transport oxygen, rather they have branching tubes called trachae that suck in air. These carry oxygen straight to the tissues. Insect blood is not important for circulation of respiratory gases. Hence they do not have a respiratory pigment.
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