Jack threw several objects into a pond. one was a soccer ball that floated. one was a small metal marble that sank. one was a long tree branch that partially floated. explain why two of the objects floated and only one sank.

According to the cladogram, which organisms have roundworms as a common ancestor?

The body of water found at number 4 on the map above is the

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?