Final answer:
Early Homo species, such as Homo erectus, showed an increased reliance on culture and meat consumption. These trends were influenced by environmental factors like climate variability and the need for adaptation to a changing environment.
Step-by-step explanation:
Early Homo species, such as Homo erectus, showed several general trends in their development. These trends include an increased reliance on culture, such as the use of fire and tool-making, and a shift towards consuming more meat. These changes were influenced by various environmental factors, such as climatic shifts and the need for increased caloric intake to support a growing brain.
The use of fire and the ability to cook meat allowed early Homo species to access more nutrients and energy from their food, which may have contributed to the development of larger brains. Environmental factors such as climate variability and temperature also played a role in shaping early Homo development, as changes in diet and caloric requirements were necessary to adapt to a colder and changing climate.
Additionally, the expansion of early Homo species into new geographical regions resulted in the spread of cultural practices and improvements in toolmaking. Migration and gene flow between different populations also contributed to cultural diversity and the development of new skills.