Final answer:
The logistical function that involves maintaining inventory and protecting goods by intermediaries is called physical distribution. It encompasses storage, inventory management, and transportation within the supply chain.
Step-by-step explanation:
The logistical function performed by intermediaries that involves maintaining inventory and protecting goods of manufacturers is called physical distribution. This function includes handling the storage, inventory management, and transportation of goods as they move from the point of production to the point of consumption. Intermediaries play a critical role in ensuring that products reach customers in a timely and efficient manner, taking on the responsibility of managing these logistics to streamline the supply chain.