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It is from adult bone marrow.
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Ozone would be the secondary pollutant because it is caused when two primary pollutants react. Hope this helps!
D)independent
Explanation:
An independent variable is a variable that is changed to test the prediction in an experiment. Independent variables are the cause in an experiment. They are the ones that produces the effect.
- Changing independent variables produces different effects in an experiment.
- These effects are the dependent variables
- Independent variables do not depend on the outcome of the experiment.
- They are the ones that determines how a reaction proceed and what might likely happen.
learn more:
Experiment brainly.com/question/5096428
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Answer:
macroevolution or microevolution
