Final answer:
The medium size cockroach generally found in sewers, drains, and dark damp basements is the American cockroach. They favor these environments due to the presence of decaying organic matter, which provides sufficient food and conditions for reproduction.
Step-by-step explanation:
The medium size cockroach often associated with decaying organic matter, dark damp basements, sewers, and drains is typically the American cockroach (Periplaneta americana). This species thrives in warm, moist, and dark environments. They are also known to be one of the largest species of cockroaches that invade homes, measuring an average of 1.5 inches in length. Their preference for sewers and drains relates to the abundance of food and appropriate conditions for reproduction and survival.
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