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  • Biology Test - 6
  • Phenomenon of photoperiodism was discovered by
Multiple choice

Phenomenon of photoperiodism was discovered by

  1. W. Went

  2. Garner and Allard

  3. P. F. Blackman

  4. R. Hills
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Photoperiodism is the physiological reaction of organisms to the length of day or night. In 1920, W. W. Garner and H. A. Allard published their discoveries on photoperiodism.

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