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 better suit their environments to survive and reproduce
What is natural selection?
The development of new species
What is speciation
Random changes in allele frequency within small populations
What is genetic drift
The scientist who proposed natural selection.
Who is Charles Darwin
Studying DNA and proteins to show relationships among species
What is biochemistry?
When humans breed organisms for the desired traits
What is artificial selection?
Many species evolving from a single ancestor
What is adaptive radiation
A population that does not evolve it stays in this state
What is Hardy-Weinberg equilibrium
When all members of a species die out.
What is extinction
The study of embryos to show evolutionary similarities
What is embryology?
Survival of bacteria despite drug treatment
What is antibiotic resistance
Evolution of similar traits in unrelated species
What is convergent evolution
A trait gained during an organism's lifetime
What is an acquired trait
Evolution that happens slowly over long periods
What is gradualism
Comparing body structures of organisms
What is comparative morphology?
When individuals at one extreme trait are favored
What is directional selection
Structures with similar function but different ancestry
What is an analogous structure
A diagram showing evolutionary relationships
What is a cladogram or phylogenetgic tree
When evolution occurs in short, rapid bursts followed by stability
What is punctuated equilibrium?
Structures that are reduced or no longer used
What are vestigial structures?
When extreme traits are favored over average traits
What is disruptive selection
Evolution or species became more different over time
What is divergent evolution
The theory that mitochondria and chloroplasts were once free-living cells
What in endosymbiotic theory