Final answer:
Homo heidelbergensis used stone tools and spears, while Homo sapiens developed blade tools. This suggests that Homo heidelbergensis was engaged in hunting activities, and Homo sapiens were advancing in their tool-making capabilities.
Step-by-step explanation:
Homo heidelbergensis used stone tools from the Acheulean tool industry and also used spears, which were made by attaching stone points to a handle made of wood. One of the important technological achievements of the heidelbergensis was the use of hafting technology, which allowed them to combine separate elements into a single tool. This suggests that they were engaging in hunting activities.
Homo sapiens, on the other hand, developed a new tool called blade tools during the Upper Paleolithic. These blade tools, made from a wider variety of materials, were more efficient than the older technologies. The development of blade tools indicated that they were advancing in their tool-making capabilities.