Answer: Option D.
After recovery from general anesthesia.
Explanation:
Wind up in animals is a situation whereby there is increase in pain on the affected area due to high stimulus that is given above the normal level. These is caused by continuous stimulation of group c peripheral nerve fibres of the nervous system.
Wind up occur in animals after recovery from general anesthesia because the peripheral nerve fibres are continuously stimulated to cause windup.
Answer:
directional selection, is a mode of negative natural selection in which an extreme phenotype is favored over other phenotypes, causing the allele frequency to shift over time in the direction of that phenotype.
I need more details sorry