What animal is the mutualistic partner for both rice and wheat corn

What are genotypes? what are phenotypes?

According the inverse square law, doubling the distance from the source of the sound, a speaker, for example, will drop the sound 6 db each time. if you were standing in the back of an auditorium, 32 feet away from a speaker not using any amplification, would you be able to hear a speaker clearly? why or why not?

Is genetic diversity the same as genetic variation?