Which mechanism triggers adult eclosion from the pupal cuticle following competence stage?

💡 Explanation

When the insect reaches pupal competence, increased chitinase activity occurs because enzymes degrade the pupal cuticle, facilitating adult emergence (eclosion). Therefore, increased chitinase activity triggers eclosion, rather than alternative hormonal changes which govern earlier developmental stages or require different environmental cues.

• Which outcome predictably occurs when marine mammal core temperatures drop rapidly?
• Which outcome increases glycogen depletion rate during prolonged avian shivering thermogenesis?
• Which navigational problem would arise in monarch butterflies lacking properly developed olfactory maps?
• Which outcome prevents complete wing transformation during a partial insect metamorphosis?
• Which challenge arises when C3 plants close stomata?
• Which consequence results when birds undergo prolonged exposure to air pollution reducing feather barbule adhesion?