GRE课程
Questions 1 and 2 are based on this passage
While studying different-sized ant colonies, Cole discovered that when there were only a few ants in the space provided, each individual exhibited a chaotic pattern of activity and rest. As the density of the colony increased by the addition of more ants, Cole observed a sudden transition to dynamic order: patterns of activity and rest over the colony as a whole suddenly changed from chaotic to rhythmic. Why should the density of ants play an apparently crucial role in the transition from chaotic to ordered behavior? Ants interact with one another, and an active ant encountering an inactive one will stimulate the latter into movement. At low densities there are few encounters, but at higher densities activity can spread like a contagion through the colony.
Consider each of the choices separately and select all that apply.
According to the passage, which of the following statements about ant interactions is true?
The interaction between active and inactive ants leads to a change in the inactive ant’s behavior.
When the density of an ant colony is low, there are relatively few interactions between ants.
When there are many ants in an ant colony, the perceived lack of space often leads ants to inactivity.
Select one or more answer choices.
