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October 26, 2014

Homework Help: BIOLOGY

Posted by MARIA on Wednesday, September 16, 2009 at 4:45pm.

PLEASE HELP ME! THANK YOU!

The table shows the percentage of the body composed of water for various vertebrates.

ANIMAL % OF BODY COMPOSED OF WATER
herring 67
Frog 78
Chicken 74
Kangaroo rat 65

A)Which animal would you expect to have the most concentrated urine and why?

B)The kangaroo rat and the chicken feed largely on plant products, while the herring and frog are carnivores. Explain how food sources would affect urine composition.

C)Why would the concentration of urea be higher in the kangaroo rat than than the herring?

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