Which consequence results when pulses of ecdysone cease during dragonfly larval development?

💡 Explanation

Molting arrest happens because reduced ecdysone prevents transcription via ecdysone receptors, thus the genes for subsequent molts or metamorphosis are not activated. Therefore, the larva remains at its current instar, rather than progressing to the next developmental stage triggered by hormones.

• Which outcome occurs when juvenile hormone concentrations decrease significantly?
• Which outcome occurs when a hibernating mammal experiences a transient temperature rise?
• Which outcome facilitates colony survival through trophallaxis when honeybee waggle dances are misinterpreted?
• Which outcome prevents complete metamorphosis during pupal ecdysis?
• Which mechanism increases efficiency of high-altitude avian flight due to specialized system of air sacs?
• Which risk increases when extensive lung air sac damage impairs unidirectional airflow in a bird during sustained soaring?