Refer to the Figure

question 17

Multiple Choice

Refer to the figure.
The figure shows flight energetics in great white pelicans that are gliding by themselves, flapping by themselves, or traveling in a group V-formation (indicated by the numbered individuals) . What is the mean wingbeat frequency (in wingbeats per minute) of a pelican leading the V-formation?

• A) 45
• B) 60
• C) 90
• D) 105

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