February 23, 2017

Homework Help: Science/Math

Posted by Please help! on Monday, May 3, 2010 at 8:22pm.

The Ruby Throated Hummingbird has a resting heart rate of 250 beats per minute. When it is threatened or chased, it's heart rate can reach 1200 beats per minute. Predict its lifespan and justify your explanation.

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