Which one of its following abilities could have led to this?

Which would be the most useful source of evidence to support mcneill's contention?

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?

Stem cells found adult tissue such as in bone marrow brain muscle skin and liver are only capable of what