Final answer:
A possible hypothesis for why ants in a tray shaped like a 'T' would choose a dark area over a light area is that the dark simulates the protective environment they favor, and therefore, more ants will end up on the dark side.
Step-by-step explanation:
The question presents a scenario where ants are given a choice to move towards a dark area or a light area in a tray shaped like a 'T'. Based on the behavior of ants and their typical preference for dark, moist environments which offer protection and are conducive to their survival and activities, a plausible hypothesis might be that more ants will end up on the dark side of the tray. This behavior could be due to their natural instinct to avoid predators and harsh environmental conditions that light areas might expose them to.
Example Hypothesis
An appropriate hypothesis for this experiment could be: "Given the choice between a darkened area and a light area, a higher number of ants will choose the darkened area because it simulates the protective and moist environment they prefer in their natural habitat." This hypothesis is testable as it predicts a measurable outcome and provides reasoning based on known ant behaviors. To test this hypothesis, one would observe and count the number of ants that choose the dark area versus the light area over a series of trials to see if a pattern emerges.