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Biology 8 Online
OpenStudy (kamille):

Hello, again @Abhisar 5. In mammals the ribcage is reduced, protecting the heart and lungs but not the intestines. This has occurred as a result of a) The need to minimise weight for rapid locomotion b) Change in diet which has allowed the digestive tract to be shorter c) Birth of large, highly-developed young d) Change to a parasaggital (improved) gait I would say b?

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