Answers

  • Brainly User
2015-10-19T12:34:49+05:30
Many small generates more surface area than one big of the same volume
0
2015-10-19T12:37:26+05:30
Alveolus are small in size because they helps in filtering of the de oxizanated blood to oxizanated blood it is very important process so they are in uncountable in number.
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