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B.5: Vitamins

Across
Substances that are foreign to an organism and are not broken down or found naturally in the environment and are therefore harmful.
The absence of regular, balanced supply of diverse nutrients needed in the diet.
The increase in concentration of xenobiotic substance in a food web when the substance cannot be metabolized.
Down
Complex array of molecules needed by organisms to maintain health.
Nutrients needed in extremely small amounts (less than 0.005% of body mass).
Approaches that seek to lessen the problems of xenobiotics and improve outlook.