Examlex
Observational studies typically point out correlations between aspects of the natural world,but they do not establish solid ________ relationships.
Transformation
The process of changing the structure or properties of a molecule, often used in context with chemical transformations.
Reagents
Materials or chemicals introduced into a system to initiate a chemical reaction or to check for the presence of a reaction.
Transformation
A thorough or dramatic change in form or appearance; in biology, it refers to the genetic alteration of a cell by the introduction of DNA from an external source.
Reagents
Substances or mixtures used in chemical reactions to detect, measure, examine, or produce other substances.
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