Examlex
Which of the following neurotransmitters is associated with sleep,mood,attention,and learning?
Natural Selection
The process by which genetic variations advantageous for survival and reproduction are preserved over generations, shaping species.
Evolution
A process through which species undergo changes over time due to genetic variation and natural selection.
Fitness
In evolutionary biology, refers to an organism's ability to survive, reproduce, and pass its genes to the next generation.
Neurons
Nerve cells that are the basic building blocks of the nervous system, responsible for receiving sensory input from the external world, sending motor commands to our muscles, and transforming and relaying the electrical signals at every step in between.
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