Final answer:
A certain area that is actively defended by a primate group is known as a territory. Territories are essential for providing resources, reproduction, and protection in various forested habitats where primates dwell.
Step-by-step explanation:
A certain area that is actively defended by a primate group is called a territory. In various primates, such as baboons and chimpanzees, this territorial behavior is crucial for acquiring resources, reproduction, and the protection of the group members. The primates live in diverse forested habitats, including rain forests and mountain forests, where they tend to establish and defend their territories. These territories provide access to food, shelter, and mating opportunities, and are pivotal in their survival. For example, chimpanzees living in Gombe National Park in Tanzania have adapted their hunting techniques and tool use within their specific territorial environment.