Below is a graph that shows the eating habits of a goldfish in an aquarium over a 2-day period.

Which of the following conclusions is supported by the information on the above graph?
A.
Fish have a 6-hour circadian rhythm.
B.
Fish have a 12-hour circadian rhythm.
C.
Fish have a 24-hour circadian rhythm.
D.
Fish do not have internal responses to any natural cycles.

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what do the different brain waves do?

explanation:

brainwaves are produced by synchronised electrical pulses from masses of neurons communicating with each other. brainwaves are detected using sensors placed on the scalp. brainwave speed is measured in hertz (cycles per second) and they are divided into bands delineating slow, moderate, and fast waves.

if you listed your answers right then i believe your answer is b.