Which outcome impairs limb regeneration if 'critical mass' thresholds are not reached in insect imaginal discs following partial amputation in larval stages?

💡 Explanation

If limb tissue removal reduces the cellular mass of imaginal discs below a threshold, then 'compensatory proliferation' cannot occur because imaginal disc cells require paracrine signaling for adequate division stimulation; therefore sufficient cell proliferation response is hindered, rather than apoptosis proceeding at an elevated rate.

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