Which process causes different bristle patterns during late-stage insect metamorphosis?

💡 Explanation

During metamorphosis, precisely regulated selective cell apoptosis, mediated by hormone cascades, occurs because programmed cell death eliminates larval structures and allows imaginal discs to form adult bristles in different patterns. Therefore cell apoptosis regulation yields varied bristle arrangement, rather than germ cell changes, chitin activation or melanization which affect cellular composition or color/hardness.

• Which metabolic change follows disruption of gut microbiome?
• Which outcome occurs when thermals are turbulent during soaring?
• Which outcome results from a prolonged shivering response in small mammals exposed to extreme cold?
• In avian respiration, which outcome specifically occurs when increased wing loading reduces the effectiveness of air sacs?
• Which outcome results if the avian parabronchial lung's crosscurrent flow is disrupted?
• Which outcome occurs in CAM plants during the night due to temporal separation of pathways?