Why do many insects like the peppered moth adapt rather quickly to changes in their environment?

the insects genetic make-up is stable
the insects form separate species
the insects have high metabolism
the insects generation (reproduction) time is short

The main reason why many insects like the peppered moth adapt rather quickly to changes in their environment is because their generation (reproduction) time is short. This allows them to produce multiple offspring in a relatively short period of time, increasing the chances of beneficial genetic mutations occurring and being passed on to the next generation. Additionally, insects often have high metabolism rates which can contribute to their ability to adapt quickly to changing environmental conditions. Their genetic makeup may also be more flexible and prone to change compared to other organisms, allowing them to rapidly evolve in response to selective pressures.