You need to be more specific this don't make sense
The answer is <span>operational definition.
Operational definitions it is a dubious in the fields of brain science and psychiatry, where natural ideas, for example, insight should be operationally characterized before they wind up noticeably manageable to logical examination, for instance, through procedures, for example, IQ tests.
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One of the best ways is positive self talk, aside from that , positive mindsets, therapies, partaking in projects or hobbies where feelings of accomplishment may flourish are all good ways to maintain a healthy self-esteem. <span />
Answer:
Three layers of tissue form the heart wall. The outer layer of the heart wall is the epicardium, the middle layer is the myocardium, and the inner layer is the endocardium.