Examlex
All the employees of ABC Company are assigned ID numbers. The ID number consists of the first letter of an employee's last name, followed by four numbers.
a.How many possible different ID numbers are there?
b.How many possible different ID numbers are there for employees whose last name starts with an A?
Neurotransmitters GABA
Gamma-Aminobutyric Acid (GABA) is an inhibitory neurotransmitter in the central nervous system that helps regulate nervous system excitability.
Serotonin
A neurotransmitter that has various functions, including regulating mood, appetite, and sleep; implicated in feelings of well-being and happiness.
Anxiety
A feeling of worry, nervousness, or unease about something with an uncertain outcome, often reflecting a temporary state or a chronic condition.
Panic Disorder
A mental health condition characterized by recurrent, unexpected panic attacks and persistent concern or behavior changes related to the attacks.
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