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einsteindude einsteindude
wrote...
Posts: 5058
8 years ago
The most efficient form of locomotion in the animal kingdom is       
A) a human walking.
B) a bird flying.
C) a human on a bicycle.
D) a propeller-driven airplane.
E) railroad trains.
Textbook 

Conceptual Physical Science


Edition: 6th
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mel!811mel!811
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8 years ago
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C

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