What of the following describes how an organism responds to external stimuli
1.a person yawns when oxygen is low in the lungs
2.the pupil of the eye gets larger when exposed to darker conditions
3.a dog eats food when its hungary
4.a woman drinks water when she is thirsty

What is the best conclusion based on this data? the hypothesis was not supported because the data indicated that fertilizing plants does not improve plant growth. the hypothesis was supported; to get the best growth, use 5 milliliters of fertilizer per plant. the hypothesis was not supported; the data indicated that too much fertilizer can inhibit plant growth. the hypothesis was supported; to get the best growth, use 15 milliliters of fertilizer per plant.