Light aka the sun I know for a fact
Mutualism is where both animal help each other to benefit form each other. Win-Win . Commensalism is where nothing happen neither animal benefits from it .
Answer:
Explanation:
NEAR remained in this orbit for 10 days and then was backed out in stages to a 100 km circular orbit by September 5, 2000. Maneuvers in mid-October led to a flyby of Eros within 5.3 km of the surface at 07:00 UT on October 26.
Launch date: February 17, 1996 20:43:27 UTC; ...
Closest approach: June 27, 1997 12:56 UTC; .
They are related because the high pitch sounds correspond to the sound waves which give high and low frequencies.
