Question: which type of electromagnetic waves do most organisms emit?
Answer: Radio Waves. Radio waves have the longest wavelengths of all the electromagnetic waves. ... 
Microwaves. Microwaves are shorter than radio waves with wavelengths measured in centimeters. ... 
Infrared. Between microwaves and visible light are infrared waves. ... 
Visible light. ... 
Ultraviolet. ... 
X-rays. ... 
Gamma rays. ... 
Activities.