Final answer:
Early Homo adapted to changing habitats by leading a nomadic lifestyle of gathering and hunting, forming close-knit groups for resource management, and employing the use of fire. Their adaptability allowed them to settle and thrive in diverse environments across the globe.
Step-by-step explanation:
Early Homo species, such as Homo erectus, coped with shifts in habitat and landscape by adopting a nomadic lifestyle, which entailed following game and seasonal vegetation. They became proficient in gathering and hunting, which involved collecting fruits, nuts, and hunting wild animals. Communal structures and cooperation within small groups allowed these early humans to overcome the scarcity of resources brought about by climate changes, such as the ice age and drier periods in Africa. The warming of the Earth facilitated access to new resources, which, alongside the control of fire, supported their survival and eventual global migration. This adaptability is evidenced by their spread across the globe, reaching all five habitable continents by around 13,000 years ago.