Bird wings and airplane wings have a highly similar shape. At the top of the wing, birds have a small feather called the alula, which extends during takeoff and landing. Which of the following is the purpose of the alula?
W) Acts as a brake by increasing drag
X) Makes the wing produce less lift
Y) Reduces turbulence and maintains lift
Z) Increases thrust
✔️Answer:Y) REDUCES TURBULENCE AND MAINTAINS LIFT
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