Examlex
Match the items listed below with the appropriate choice
-On the sources and types of air pollutants figure, choose the letter that represents CO, CO₂, SO₂, NO, NO₂, most hydrocarbons, and most suspended particles.
Biological Barriers
Structures and mechanisms that protect organisms from pathogens, toxins, and other external threats.
Energetic Barriers
The energy obstacles that must be overcome for a chemical reaction to proceed, related to the activation energy of the reaction.
Postzygotic Barriers
Reproductive barriers that occur after fertilization, preventing successful development, survival, or reproduction of hybrid offspring.
Flicker Hybrid Zone
A hypothetical or unverified term in biology; potentially refers to a region where closely related species with marginal differences, akin to light flickers, meet and hybridize.
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