Which is a common characteristic of insect pests?

The correct choice highlights that a common characteristic of insect pests is their small size and high reproductive rate. Insect pests generally have adaptations that enable them to reproduce quickly and in large numbers, which is a key factor in their ability to become pests. This high reproductive rate means that populations can grow rapidly, making management challenging for pest control efforts.

Additionally, the small size of many insect pests allows them to exploit various habitats and food resources efficiently, often going unnoticed until their populations reach damaging levels. This combination of small size and prolific reproduction contributes to their status as significant agricultural and urban pests, frequently leading to economic losses and the need for pest management strategies. Insect pests' rapid lifecycle also often results in multiple generations in a single growing season, exemplifying their ability to adapt and thrive in various environments.