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Where does gas exchange take place between blood and body cells?
Where does gas exchange take place between blood and body cells?
What do animals use for respiration according to the text?
What do animals use for respiration according to the text?
How do hydrophytes absorb oxygen according to the text?
How do hydrophytes absorb oxygen according to the text?
What is the main purpose of oxygen for all animals according to the text?
What is the main purpose of oxygen for all animals according to the text?
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What is the primary function of external respiration?
What is the primary function of external respiration?
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Adult amphibians, reptiles, birds and mammals respire through ______
Adult amphibians, reptiles, birds and mammals respire through ______
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The most important feature of gills is that they absorb oxygen dissolved in ______
The most important feature of gills is that they absorb oxygen dissolved in ______
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Respiration is the exchange of gases between an organism and its ______
Respiration is the exchange of gases between an organism and its ______
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There are different organs used as respiratory organs by different organisms, including body surfaces, gills, trachea and ______
There are different organs used as respiratory organs by different organisms, including body surfaces, gills, trachea and ______
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Respiration is the breaking down of glucose in cell to produce energy in presence of oxygen and carbon dioxide released at the end of it, known as ______
Respiration is the breaking down of glucose in cell to produce energy in presence of oxygen and carbon dioxide released at the end of it, known as ______
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