Question

a student asks, \how does exercise affect an individuals heart rate?\ which step can the student complete to best help her answer the question through scientific inquiry? she can keep the results to herself. she can conduct background research. she can ask friends for their opinions. she can observe people who do not exercise.

Explanation:

In scientific inquiry, conducting background research is a fundamental step. It helps in understanding existing knowledge, formulating hypotheses, and designing experiments. Keeping results to oneself (no sharing for validation), asking friends for opinions (not scientific evidence), or only observing non - exercisers (lack of comparison with exercisers) are not as effective as background research.

Answer:

She can conduct background research.