Which outcome during thermal soaring occurs when a vulture's alula stalls?

💡 Explanation

Vultures use thermal columns to soar; stalling the alula triggers boundary layer separation, decreasing lift because airflow cannot effectively adhere to the wing's upper surface. Therefore, lift is acutely lost, rather than augmented. Enhanced drag is expected.

• Which outcome occurs when guard cell turgor pressure decreases significantly in plant stomata?
• Which consequence results when polarized light declines for nocturnal moths?
• Which outcome results from the endocrine gland failing during the larval stage?
• Which restriction follows from photorespiration occuring due to high oxygen?
• Which biomechanical effect underlies efficient oxygen extraction from air sacs during avian flight?
• When CAM plants transition to shade, which outcome results due to insufficient light?