what is the range of human hearing?

what animal has a range of hearing that is 75Hz - 150kHz?

mouse, elephant or dolphin?

what is the flap of cartilage and skin that is what we call the ears actually called?

what are the three small bones in the ear?

what is sound called if it too high pitched for humans to hear? (over 20kHz)

what is sound called if it is too low pitched for humans to hear? (below 20Hz)

how low can an elephant hear (Hertz)