Evolution Basics
The process in which species change over time.
What is evolution
Preserved remains or traces of organisms from the past
What are fossils?
The process by which organisms with advantageous traits survive & reproduce more successful over many generations
What is natural selection?
The development of new species
What is speciation
How does genetic change occur?
What is DNA mutations
The scientist who proposed natural selection.
Who is Charles Darwin
Studying DNA and proteins to show relationships among species
What is biochemistry or phylogenetics?
When humans breed organisms for the desired traits
What is artificial selection?
Many species evolving from a single ancestor
What is adaptive radiation
Dichotomous keys is used for?
What is species identification
When all members of a species die out.
What is extinction
Embryos of different species having similarity that are not visible when organisms are fully formed. Eg. Human embryos have a distinct tail - like structure that is reabsorbed through development. This provides evidence of what?
What is common ancestry?
Survival of bacteria despite drug treatment
What is antibiotic resistance
Evolution of similar traits in unrelated species
What is convergent evolution
A diagram showing evolutionary relationships
What is a cladogram or phylogenetgic tree
Changes that involves creating a new species (speciation)
What is macroevolution
Features in different species that are similar due to shared ancestry, not necessarily functional structures that suggest that all organisms have a common ancestry
What is homologous anatomical?
What is behavioral adaptation
Structures with similar function but different ancestry
What is an analogous structure
A trait gained during an organism's lifetime e.g sun tan or building muscles
What is an acquired trait
When the species have changes in their phenotypes and gene frequencies in the gene pool
What is microevolution
Structures that are reduced or no longer used
What are vestigial structures?
Internal, automatic changes in the body´s cells, tissue and organs that increase fitness.
What is physiological adaptations
Evolution or species became more different over time
What is divergent evolution
Standardized naming system
Scientific Nomenclature