The figure below shows what happens in insect populations when crops are sprayed with insecticides.This is an example of ______. 
Definitions:
OPEC Countries
Nations that are members of the Organization of the Petroleum Exporting Countries, known for coordinating oil production policies.
Oil Price
The cost per barrel of crude oil, influenced by factors like geopolitical events, supply and demand dynamics, and market speculation.
Unanticipated Inflation
Inflation that occurs when businesses and individuals are unable to accurately predict the rate of inflation, leading to potential economic distortions and uncertainties.
Long-Term Bondholders
Individuals or entities that invest in bonds with maturities typically longer than 10 years.
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