I recently completed the USATestprep quiz with this question, and the right answer is Her speed appears to be influenced by the time of day; however, she intends to assess how the meal types affect her results.
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By the way, I'm certain that’s the correct response.
Hypothesis: Trans fats are linked to adverse cardiovascular effects.
Prediction: Increased consumption of trans fats elevates the risk of cardiovascular diseases.
Experiment: Participants are provided with either a high or low trans fat diet.
Data collection: Blood samples will be analyzed to assess fat and cholesterol levels in both groups.
Practical limitations:* Can we effectively control every aspect of participants' diets?
* Are there other lifestyle factors impacting cardiovascular health?
Ethical Limitation: Are there risks to participants' health involved in this study?