[Campbell Biology P.789] According to the text, which unique flight ability is characteristi... | Practice Question

According to the text, which unique flight ability is characteristic of hummingbirds?

  • A: They can fly at extremely high altitudes.
  • B: They are the only birds capable of flying long distances without rest.
  • C: They can rotate their wings in all directions, enabling them to hover and fly backward.
  • D: Their flight is powered by powerful leg muscles, not wing muscles.

Explanation

The text explicitly states that a hummingbird 'can rotate its wings in all directions, enabling it to hover and fly backward,' making this the correct and unique characteristic.