Having more then one independent variable will give unreliable results. Hope this helps
Answer:
Only P-waves were recorded at seismic station C because P-waves travel At different avival times
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Answer:
Calcitonin stimulates the kidneys to absorb calcium when calcium levels are too low, while parathyroid hormone stimulates the kidneys to excrete calcium when calcium levels are too high.
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Explanation:
4 is the correct answer if it helps you then plzz mark me brainliest