Final answer:
The Natufians adapted to environmental changes by adopting agriculture and domesticating animals, leading to more stable food sources and population growth.
Step-by-step explanation:
The Natufians responded to changes in the resources they depended on by transitioning from a hunter-gatherer lifestyle to one based on agriculture and the domestication of animals. This shift was part of the Neolithic Revolution, which allowed for more reliable food sources, the rise of labor specialization, and the development of more complex social structures. As their environment changed, becoming less rich in wild edible plants and animals, the Natufians adapted by promoting the growth of particular crops and domesticating animals. This move towards farming and animal husbandry was a significant adaptation that provided the Natufians with the resources they required for their survival and facilitated the growth of their population.