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Home Q & A Board Biology-Related Homework Help Anatomy and Physiology
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dracko dracko
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6 years ago
Wading birds in northern climates are able to walk in pools of water on ice without dying of hypothermia because they have countercurrent heat exchangers in their legs. These exchangers allow heat in warm blood going to the feet to be transferred to cool blood returning from the feet. Why are such countercurrent heat exchangers so efficient at conserving heat?
A) The gradient between the two currents is maintained even as one current cools and the other current heats.
B) There is a large temperature differential from one end of each current to the other.
C) Blood in the arteries and veins flow in the same direction, so there is no loss to friction.
D) All of the above apply.
E) A and B only apply.
Textbook 
Biological Science, Canadian Edition

Biological Science, Canadian Edition


Edition: 2nd
Authors:
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GTi_NickyGTi_Nicky
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6 years ago
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dracko Author
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6 years ago
Thanks
klyn
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Yesterday
Thank you, thank you, thank you!
jmelchor77
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2 hours ago
Thanks for your help!!
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