Humans see different colors because our eyes ar
onerent colors because our eyes are responding to list that is
different in which characteristic?
a: speed
b: amplitude
c: angle
d: wavelength

those sounds of the natural world are bioacoustics, and they're more than a false-color spectrogram of data from the musiamunat conservation area.

an informal structure in a bureaucracy would be something like so-called "office politics". where there's a formal structure set up for the organization, but then an informal subculture as well that has a way of organizing the bureaucracy further. this can be positive because it sets up an added degree of organization, albeit informal, within the bureaucracy.