Biology, asked by bhupendar6412, 10 months ago

1. Concentration gradient(high to low concentration) for oxygen is from tissues to blood and blood to alveoli. 2. Concentration gradient(high to low concentration) is present for CO2 (in the opposite direction) from alveoli to blood and blood to tissues. Regarding 1 and 2 :

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Answered by Aman7122

1

what is this plz specific

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