Mimicry. This is when oraganisms imitate another oraganism whether it be physical or behavoioral.
The green wavelengths are reflected, causing green to be the only color we see in certain parts of plants.
Best of luck, my man.
Answer:

Explanation:
v = Speed of electron =
(generally the order of magnitude is 6)
m = Mass of electron = 
Work done would be done by

The work required to stop the electron is 