An important similarity between a sub-lethal dose and a lethal dose is, they both produce adverse affect to which the dose is applied. However, they differ on the level of toxin or noxious substance causing adverse reaction. So, lethal dose causes an organism to die while in the sub-lethal, the dose is not quite enough to cause death.
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The term that best fits the description given above is SPECIFICITY. Specificity formally refers to targeting training needs. These includes activities, workouts and exercises to be covered that aim to acquire the specific needs for the training. The answer is the second option.
