Which One of the Following Is Not an Adaptation Shown

question 78

Multiple Choice

Which one of the following is not an adaptation shown by modern birds?

• A)a respiratory system that allows all of the air to pass through the lungs in one direction
• B)complete division of the heart into right and left halves
• C)endothermy
• D)wings and a long feathered tail
• E)modified beaks and feet to support feeding behavior

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