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Phosphorus is considered to be an essential element for life; if the bacteria found in Mono Lake actually incorporate arsenic into their DNA,this assessment will need to be reevaluated.
Opiate Drugs
Substances derived from opium or synthetically made to mimic its effects, typically used to relieve pain but also known for their potential for addiction and abuse.
Receptor Sites
Specific locations on cell membranes or within cells where hormones, neurotransmitters, drugs, or other molecules bind to elicit a biological response.
Endorphins
“Morphine within”—natural, opiatelike neurotransmitters linked to pain control and to pleasure.
Axon
A long, slender projection of a nerve cell that conducts electrical impulses away from the neuron's cell body.
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