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  • Zoology Test Paper
  • A trace element
Multiple choice

A trace element

  1. is radioactive and can be traced by geiger-count

  2. is required in very minute amounts

  3. draws other elements out of protoplasm

  4. was one of the first to be discovered in protoplasm

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Trace element is an element that is required in minute quantities for physiological functioning.

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