Read the passage below and base your answers on the text.
Before the Neolithic Revolution
. . . Man survived the fierce test of the Ice Ages because he had the flexibility of mind to recognize inventions and to turn them into community property. Evidently the Ice Ages worked a profound change in the way man could live. They forced him to depend less on plants and more on animals. The rigors of hunting on the edge of the ice also changed the strategy of hunting. It became less attractive to stalk single animals, however large. The better alternative was to follow herds and not to lose them — to learn to anticipate and in the end to adopt their habits, including their wandering migrations. This is a peculiar adaptation — the trans-humance [nomadic] mode of life on the move. It has some of the earlier qualities of hunting, because it is a pursuit; the place and the pace are set by the food animal. And it has some of the later qualities of herding, because the animal is tended and, as it were, stored as a mobile reservoir of food. . . .
Source: Jacob Bronowski, The Ascent of Man, Little, Brown and Company
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