Which outcome results when growing flight feathers encounter insufficient blood supply?

💡 Explanation

Stress bars form due to interrupted keratin deposition via protein production during feather growth because a rapid supply is critical, therefore visible fault bars appear due to malformed feather structure rather than increased feather flexibility.

• Which outcome results within bird flocks when call amplitude decreases?
• Which outcome ensures healthy wetland plant growth when perpetually waterlogged?
• Which outcome occurs when a CAM pathway plant lacks adequate water during peak daylight hours?
• Which outcome occurs among migrating birds experiencing excessive wing loading during headwinds encountering thermal updrafts?
• Which phenomenon abruptly ends hibernation from peripheral vasodilation?
• Which outcome occurs when cut herbaceous plants lack free-flowing water columns subject to tension?