Define frequency and amplitude. Explain how the pitch and volume of a sound wave is related to its frequency
and amplitude giving examples of each type of sound
to support your statements

What protects the lining of the stomach from acidic gastric juices?

Select the best answer for the question, ly 12. which of the following behaviors is not an inherited behavior?

Up until 1938, paleontologists accepted the idea that coelacanths (an ancient fish) went extinct at the time that they last appear in the fossil record, about 80 million years ago. but in 1938, a live coelacanth was discovered off the coast of south africa that was compared to the fossil record and found to be the same species what goal of science does this discovery represent