3. A paleontologist discovers a limestone rock layer that contains fossil remains of a bony fish. In a sandstone rock layer above this she discovers the fossils of a small, rocient-like
mammal. What statement can the paleontologist make about the climate changes that have
occurred over time?

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?

This is an active transport mechanism by which cells pump sodium and potassium ions against the concentration gradient

What are levels of ecology and how can we remember them