This means that there are steps or stages throughout one's life in which the mind and personality undergo changes. For example, one may take a step as a child going from rarely having their own thoughts and feeling to creating their own opinion. This would be a step that the person is taking.
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No the answer is false, you need to keep the eyelid open because if its closed what ever hazardous material won't be removed from the eye
Ron is being proactive knowing high blood pressure runs in his family he studied what the causes and signs were so he knows to avoid certain foods and to exercise to keep his blood pressure under control.
C. it improves the ability to make a diagnosis