NCEA Level 3 Biology – Human Evolution (AS91606) Practice Exam 2026 - Free Human Evolution Practice Questions and Study Guide

The discovery of fire provided Homo erectus with substantial advantages, primarily through cooking food and hardening tools. Cooking food was transformative, as it made nutrients more accessible and digestible, which could have contributed to the development of larger brains over time. The process of cooking not only increased the energy yield from food but also reduced the risk of foodborne pathogens, enhancing overall health and survival rates.

Moreover, fire also allowed for the hardening of tools, leading to the creation of more effective hunting implements. This technological advancement improved their ability to hunt and process animals, further increasing food availability. Overall, the benefits gained from harnessing fire played a critical role in the evolutionary success of Homo erectus, supporting both their dietary needs and tool-making capabilities.