Overview
Evolutionary theory is a fundamental concept in biology that explains how species change over time through mechanisms like natural selection and genetic drift. It provides a framework for understanding the diversity of life on Earth and how organisms adapt to their environments. By studying evolutio...
Key Terms
Example: The peppered moth's color change during the Industrial Revolution.
Example: A natural disaster that wipes out a large portion of a population.
Example: Darwin's finches evolving into different species on the Galapagos Islands.
Example: Cacti have adapted to store water in arid environments.
Example: The allele for brown eyes versus blue eyes.
Example: Height, eye color, and blood type.
Related Topics
Genetics
The study of genes, genetic variation, and heredity in living organisms.
intermediateEcology
The branch of biology that deals with the relationships of organisms to one another and to their physical environment.
intermediatePaleontology
The scientific study of the history of life on Earth through the examination of plant and animal fossils.
advancedKey Concepts
Natural SelectionGenetic DriftSpeciationAdaptation