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← Nature & AnimalsWhich outcome dramatically reduces overall avian energy consumption during long-distance flight?
A)Exploitation of thermal updraft convection✓
B)Increased red blood cell count
C)Enhanced digestive enzymatic activity
D)Higher proportion breast flight muscle
💡 Explanation
Soaring utilizes thermal updraft convection transport reducing flapping exertion; birds gain altitude from rising warm air, rather than constant wing flapping. Therefore, energy expenditure decreases substantially because powered flight becomes intermittent rather than continuous.
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