In the diagram shown below,where is the apical surface of the epithelial cell? 
Definitions:
Self-respect
The regard for one's own well-being and dignity.
Self-confidence
The belief in one's own abilities and judgment, enabling an individual to face challenges, take risks, and express themselves confidently.
Independence
The state or quality of being self-sufficient and free from outside control, making decisions without undue influence from others.
Physiological
Pertaining to the branch of biology that deals with the normal functions of living organisms and their parts.
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