Final answer:
Cockroaches typically infest areas rich in food, moisture, and shelter, such as kitchens and bathrooms. They contribute to ecological balance by preying on smaller pest species, thus aiding in natural pest control.
Step-by-step explanation:
Cockroaches are insects that are known for their hardiness and ability to thrive in various environments. They often appear in areas where food, moisture, and shelter are abundant. Typically, cockroaches can be found in kitchens, bathrooms, basements, and places where garbage is stored because these sites provide them with the necessary resources for survival. Furthermore, these insects play a significant role in the ecological balance by acting as predators and prey within their ecosystems. Cockroaches, along with other arthropods such as spiders, mites, and ticks, help manage populations of smaller species which can be considered pests, hence contributing to natural pest control.