The answer is A hope this helped you :)<span />
Answer:
When scientists conduct an experiment and analyze the results, the next step is to write up a report that describes the experiment and the results and submit it for publication in a scientific or medical journal that is “peer reviewed.”
C
The respiratory system removes the waste carbon dioxide produced from aerobic respiration in the body.
1: B
2:D
Those are the answers!
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Law would be the correct answer to fill in the blank. Law is correct because scientific law explains behaviors of natural phenomenons since it's based on repeated experiments.