They've gone out to do different tasks, and the rate at which they meet as they come in and out of the nest entrance determines, or influences, each ant's decision about whether to go out, and which task to perform.
Elles ont accompli des tâches différentes, et le rythme auquel elles se rencontrent à l'entrée, détermine, ou influence la décision d'une fourmi de sortir ou pas, et de quelle tâche accomplir.
They've gone out to do different tasks, and the rate at which they meet as they come in and out of the nest entrance determines, or influences, each ant's decision about whether to go out, and which task to perform.
Elles ont accompli des tâches différentes, et le rythme auquel elles se rencontrent à l'entrée, détermine, ou influence la décision d'une fourmi de sortir ou pas, et de quelle tâche accomplir.