Which outcome maximizes soaring efficiency when thermals are weak?

💡 Explanation

Increased buoyancy reduces the energy birds use, because wing loading affects climb rate in thermals via convection. Lower wing loading is effective in weak thermals, therefore birds with light bones and extensive air sacs perform better, rather than increase insulation.

• Which outcome is observed when high temperatures inhibit plant Rubisco's enzyme activity during photosynthesis?
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