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in mammalian lungs the exchange of oxygen and carbon dioxide occurs in microscopic sacs in the lungs called in the lungs called in the avian lung the gas exchange occurs in the walls of microscopic tubules called air capillaries in mammalian only one respiratory cycle is necessary.

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1. the exchenginh of oxygen and carbondixid occur in microscopic sacs in the lungs called alveoli.in the avian lung gas exchenge occur in walls of microscopic tubules called air capillares. in mammals only one respiretory .

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1.insect  do not  breathe  the same   way that we do . oxygen travels to insect tissues thought tiny.

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in mammalian lungs the exchange of oxygen and carbondioxide occurs in microscopic s
ace

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1.the occurs in the walls of microscopic tubules called air capillares .in mammalls oniy one respiretory.2

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1. the exchenging of oxygen and carbon dioxide occurs in microscopic sacs in the lung called alveali .in the avian lung gas exchenge occur in walls of microscopic tubules called air capillares.in mammalls only one respiretory.
2. insects do not breath at the same way that we do.

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1. how exchange of gases takes place in birds ?
answer: In mammalian lungs the exchange of oxygen and carbon dioxide occurs in microscopic sacs in the lungs called in the avian lung the gas exchange occurs in the walls of microscopic tubules called air capillaries in mammalian only one respiratory cycle is necessary

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how exchange of gases takes place in birds?
answer in mammalian lungs the exchange of oxygen and cargon dioxide occurs in microscopic sacs in the lung

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1. how exchange of gases takes place in birds ?
ANSWER;

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How do insect breathe?                      insect do not breathe the same way that we do. oxygen travels to insect tissues thought tiny  opening  in the body walled spiracles.

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how do insects breathe

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in stead of lungs

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1.how exchange of gases takes place in bird ?
1. bird lungs do not expand or contract likes  of mammals . respiration in bird is much different than like mammals .
2. how do insect breathe ?
1.insteal of lungs insect breathe with a network of tiny tubes . insect require oxygen to live and produce carbon dioxide as awaste product such as human

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1.How exchange of gases  takes place in birds ?

2.How do insects breathe?