Hello there.
A biology class wants to perform an experiment to investigate the effect of different colors of light on germination. they wrap clear glass jars with green, yellow, red and clear cellophane and plant three seeds in each one. what part do the three colors of cellophane play in this experiment?
The three colors of cellophane serves as the light source for the set-up. The three colors would give different wavelengths of light to the sample in the jar.