What is the approximate age of a bone after two carbon-14 half-lives?

How are mutations continually being generated in a population (what are some of the causes of mutatuions? ) explain

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?

Bio molecules are essential to all living things. which biomolecule is “d” from the table