Functional Adaptations in Animal Groups · Zoology

The presence of nucleated red blood cells in birds is an adaptation related to:

  1. Slow metabolism
  2. High oxygen demand
  3. Reduced body weight
  4. Cold-blooded nature
Show answer and explanation

Correct answer: High oxygen demand

Birds have nucleated red blood cells that support high metabolic activity. This helps meet oxygen demands during flight.

Difficulty: Medium Question 17 of 20

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