Examlex
Hemorrhoids are the enlargement of veins either internally or externally in the rectal area.
Herring Gull Chicks
The young of herring gulls, a species of large seabirds known for their adaptability and varied diet.
Tinbergen
Refers to Nikolaas Tinbergen, a biologist known for his foundational work in animal behavior and ethology.
Natural Selection
The process by which genetic variations advantageous for survival and reproduction are preserved over generations, shaping species.
Evolution
A process through which species undergo changes over time due to genetic variation and natural selection.
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