If the lithology and fossil content of two bodies of rock on opposite sides of a canyon are identical,then these remaining outcrops were likely physically connected at one time and formed part of an extensive,sheet-like layer of rock.This idea summarizes the principle of ____________. 
Definitions:
Pathology
The scientific study of disease processes, including the causes, development, and effects on the body.
Spiritual Growth
The process of evolving and expanding one's spiritual awareness, beliefs, and practices.
Complex Health Conditions
Health issues that are multifaceted, requiring extensive medical care or multifactorial interventions due to their complicated nature.
Functional Loss
A diminished ability to perform daily activities due to physical, mental, or emotional impairments.
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