The answer is a person removes their hand after touching a hot stove and a person turns their head toward the source of loud noise.
External stimuli are factors outside of the body that is taken in by receptors and will lead to a response. Examples of external stimuli include temperature changes, vision, hearing, tasting, smelling, and even sunlight for plants.
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Answer:
<em>Humans cultivate plants that house bacteria in soil to convert ammonia and ammonium ions to </em><u><em>nitrate</em></u>
Explanation:
Answer:
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Explanation:
For each molecule of glucose consumed, the Krebs cycle occurs: D. twice
1 glucose --> 2 pyruvate, each one entering the Krebs as acetyl-CoA