Final answer:
It is appropriate to place specimens in ice when transporting them to maintain their integrity and prevent degradation.
Step-by-step explanation:
When transporting specimens, it is appropriate to place them on ice when they need to be kept at a cold temperature to prevent degradation. Placing specimens on ice helps to maintain their integrity and preserve their quality. For example, medical specimens like RNA are often stored on ice to prevent degradation. Bacterial cultures and other medical specimens requiring long-term storage or transport are frozen at ultra-low temperatures, which can be achieved by placing them on dry ice or in liquid nitrogen tanks.