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Evolution

Vocabulary for the Natural Selection and Evolution Unit

TermDefinition
Diversity The degree of variation of living things present in a particular ecosystem
Genetic Variation The alleles of organisms within a population change. This change may result from mutation, gene flow, or sexual reproduction
Natural Selection The process by which organisms that are best adapted to their environment are most likely to survive and reproduce
Species A group of similar organisms that can mate with each other and produce offspring that can also mate and reproduce
Adaptations An inherited behavior or physical characteristic that helps an organism survive and reproduce in it environment
Environmental Factors Known characteristics in an environment that impact the survival, and growth of an organism
Geographical Isolation Group of plants, animals or other living creatures being separated from the other members of the species by a natural barrier
Extinction The disappearance of all members of a species from Earth
Fossil The preserved remains of traces of an organism that lived in the past
Climate Change A long-term change in the earth's climate, especially a change due to an increase in the average atmospheric temperature
Theory of Evolution Theory that the differences between modern plants and animals are because of changes that happened by a natural process over a very long time
Non-native Species An introduced, exotic, non-native species, or simply an introduction, is a species living outside its native distributional range, which has arrived there by human activity, either deliberate or accidental
Food Scarcity Insufficiency of amount or supply of food
Evidence The available body of facts or information indicating whether a belief or proposition is true or valid
Scientific Knowledge General truths of the operation of general laws, esp. as obtained and tested through scientific method concerned with the physical world
Created by: mmmack