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← Nature & AnimalsWhich risk is elevated when an amphibian larva experiences thyroid hormone disruption?
A)Incomplete metamorphic stage transition✓
B)Accelerated erythrocyte production ratios
C)Increased dermal layer melanophore density
D)Excessive alkaline phosphatase enzyme suppression
💡 Explanation
Disrupted thyroid hormone function alters gene expression changes initiating metamorphosis; metamorphosis therefore requires a critical hormone threshold and receptor activation, rather than other homeostatic processes, because the complete transition from larval to juvenile form depends on its presence.
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