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Historically fishermen kept larger fish and left smaller juvenile fish.Over time the average size of the fish would
Antagonist
An antagonist is a substance that blocks or dampens the effects of a neurotransmitter or hormone, or a character in a story who opposes the protagonist.
Neurotransmitter
Substances that carry messages from one nerve cell to another through the synaptic gap within the nervous system.
Blood Oxygen
A measure of the amount of oxygen carried by the blood, critical for the functioning of vital organs and typically assessed via pulse oximetry or blood gas tests.
Functional Magnetic Resonance Imaging
A brain imaging technique that measures and maps brain activity by detecting changes associated with blood flow.
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