Code Number: 11B10.30

Demo Title: Circadian Rhythms - Biological Clocks

Principle: Physiology, Biological System Cycles

Area of Study: Physiology, Biology

References:

  • Robert Ehrlich and Ronald Helms, "A Most Unnatural Rhythm", TPT, Vol. 19, # 1, Jan. 1981, p. 39.
  • Dr. Finck, "Measuring the Heartbeat of a Spider", TPT, Vol. 19, # 5, May 1981, p. back cover.
  • Eric T. Pengelley and Sally J. Asmundson, "Annual Biological Clocks", Scientific American, Vol. 224, # 4, Apr. 1971, p. 73.