Examlex
MATCHING
Match the component of the nitrogen cycle with its description.
a.assimilation
c.nitrification
b.denitrification
d.nitrogen fixation
-carried out by nitrifying bacteria
Serotonin
A neurotransmitter that plays a key role in regulating mood, appetite, and sleep, among other functions, often associated with feelings of well-being and happiness.
Neurotransmitter
A chemical substance that transmits signals across a synapse from one neuron to another.
Glutamate
An important neurotransmitter in the brain involved in learning and memory.
Melatonin
A hormone produced by the pineal gland that regulates sleep and wakefulness.
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