What important observation can be made about the behavior of mosquito populations responding to external stimuli?

The observation that blind mosquitoes can be attracted by lights highlights an important aspect of mosquito behavior. Mosquitoes, particularly certain species, are known to be phototactic, meaning they are drawn to light. This phenomenon is primarily linked to their search for hosts or breeding sites. Even without the ability to see, mosquitoes can still be influenced by light through other sensory mechanisms, such as their sense of smell or heat detection, thus making them respond to light sources.

This behavior is significant as it demonstrates the adaptability and survival instincts of mosquitoes, relying on alternative cues to locate resources necessary for their reproduction and sustenance. Understanding such behaviors can aid in devising effective pest control methods and studying ecological interactions within the environment.

In contrast, the other statements do not accurately reflect mosquito behavior. Mosquitoes indeed respond to light but also rely on other factors, such as proximity to water for breeding, which is highlighted by the option stating their tendency to increase in number near water sources. The idea that they appear only in specific seasonal patterns overlooks their ability to adapt to varying environmental conditions and urbanization.