Examlex
The neurotransmitter responsible for regulating our mood states is acetylcholine.
Evolution
The process whereby multiple forms of life are thought to have arisen and diversified from ancient ancestors throughout the geological history of the planet.
Scientists
Individuals engaged in systematic investigation and study to acquire knowledge and understanding through observation, experiment, and theory development in various fields.
Percentage
A mathematical concept representing a number or ratio as a fraction of 100, used to express proportion, allocation, and statistical data.
Theory
A coherent group of tested general propositions, commonly regarded as correct, that can explain phenomena and predict future occurrences.
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