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Home Q & A Board Biology-Related Homework Help General Biology
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rickyfa18 rickyfa18
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6 years ago
In which of the following animals would perfusion be LEAST efficient during gas exchange?
 
  a. a bird
  b. a frog
  c. a fish
  d. a flatworm
  e. a human

Question 2

Why is proper ventilation important for a respiring animal?
 
  a. It directly increases gas exchange between the blood and cells.
  b. It maintains proper O2 and CO2 levels on the external side of the respiratory surface so
  diffusion across it can be maintained.
  c. It maintains blood circulation within the body of an animal.
  d. It maintains proper O2 and CO2 levels on the internal side of the respiratory surface so
  diffusion across it can be maintained.
  e. It maintains proper O2 and CO2 levels in tissues.
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redrider89redrider89
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6 years ago
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rickyfa18 Author
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6 years ago
This helped my grade so much Perfect
MLynneMcMillan
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Yesterday
Good timing, thanks!
big_larry_samp
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2 hours ago
Just got PERFECT on my quiz
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