Evolution #1
When two unrelated organisms evolve similar characteristics because they evolved in the same environment. They start to look alike because they live in similar environments.
analogous structures or convergent evolution
Proposed the theory of evolution by natural selection
Who is Charles Darwin
Change over time is the definition of ___________.
What is Evolution
Nature selects a trait that increases an individual’s chance of mating
What is Sexual Selection
Preserved remains of ancient organisms
What are Fossils
Individuals with an intermediate value of an inherited phenotype have the advantage
What is Stabililizing Selection
The study of where species live
What is Biogeography
Structures that are similar in anatomy but not in functionality
What is a Homologous Structure
When one species evolves into many
What is divergent evolution
Several individuals from a population break off and form new population
What is Founder Effect
When a freak accident wipes out part of the population
What is bottleneck effect
New organisms come into or out of a population
What is Gene Flow
Individuals of one extreme of a phenotype have the advantage over others
What is Directional Selection
The differences in the physical traits of organisms
What is variation
This is another term for Natural selection
What is The survival of the fittest
Diagram showing the evolutionary relationships between organisms.
What is a cladogram?
Individuals of either extreme of an inherited phenotype have the advantage over the intermediate forms
What is Disruptive Selection
The ultimate source of genetic variation
What is genetic mutation
The physical process of horizontal gene transfer between bacteria
What is Conjugation