Examlex
What annual rate of change (natural increase) was seen in the world's population between 1963 and 2011?
Independent Variable
The variable in an experiment that is manipulated or changed to explore its effect on the dependent variable.
Neurotransmitter
Chemicals in the nervous system that transmit signals across a synapse from one neuron to another, influencing a wide range of bodily and psychological functions.
Dopamine
A neurotransmitter involved in many functions, including mood, sleep, learning, and the pleasure-reward system.
Serotonin
A neurotransmitter that is involved in many functions in the body, including mood regulation, digestion, and sleep.
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