Examlex
According to the clonal selection theory,antigens select lymphocyte clones by:
Extinction
The gradual reduction and eventual disappearance of a conditioned response following the removal of reinforcement.
Fear
An emotional response to perceived threats, leading to a fight-or-flight response.
Plane Crash
An event in which an aircraft meets with a severe accident, typically resulting in major damage or destruction.
Japanese Quail
A species of quail native to East Asia, often used in research and for their eggs and meat.
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