Which of the following hormones increases the heart rate in response to stress? a. Glutamate
b. Epinephrine
c. Testosterone
d. Insulin

Epinephrine is another name for Adrenaline

Explanation:

Adrenaline is a hormone that increases your heart rate in response to stress.

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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.