Which signaling disruption prevents a butterfly pupa from developing?

💡 Explanation

Sustained high levels of juvenile hormone maintain larval characteristics by preventing the release of ecdysone, thus inhibiting metamorphosis. High juvenile hormone prevents pupation, because this hormone directly antagonizes ecdysone signals, rather than inducing apoptosis or alternate gene transcription.

• Which outcome enhances plant growth in nitrogen-poor soil mediated by fungi?
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• Which outcome results when river otters experience reduced swimming activity within icy river conditions?
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