Adaptations for flight in birds include all EXCEPT which of the following?

Question

Quizplus · Accepted Answer

Sound production is not directly related to flight adaptations in birds. While some bird species may use vocalizations during flight for communication or territorial displays, this is not an adaptation that is essential for flight. The other options listed (lightweight bones, feathers, efficient respiration, and a four-chambered heart) are all essential adaptations that enable birds to fly.

Adaptations for Flight in Birds Include All EXCEPT Which of the Following