Which Metal Is Part of the Structure of Vitamin B₁₂

question 30

Multiple Choice

Which metal is part of the structure of vitamin B₁₂?

• A) cobalt
• B) copper
• C) iron
• D) zinc

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Definitions:

Stress Appraisal

Stress appraisal involves the process of recognizing and evaluating a threat in the environment, determining its potential impact and how best to respond.

Fight Or Flight

A physiological response to perceived harmful events, attacks, or threats to survival, triggering a choice to either confront the situation aggressively or flee from it.

General Adaptation Syndrome

A theory by Hans Selye that describes the three stages of response to stress: alarm, resistance, and exhaustion.

Catharsis

The process of releasing and thereby providing relief from strong or repressed emotions, often through art, dialogue, or reflection.