Final answer:
Warm-water parcels from the Gulf Stream enter cold-water regions in the form of ocean upwelling.
Step-by-step explanation:
Warm-water parcels from the Gulf Stream are able to enter cold-water regions in the form of ocean upwelling. Ocean upwelling refers to the rising of deep ocean waters that occurs when prevailing winds blow along surface waters near a coastline. This phenomenon allows warm water from the Gulf Stream to move into colder areas, impacting temperature and precipitation patterns in Europe and other parts of the world.