All about darwin
Who was Charles Darwin
Nateralist for 5 year trip
Microevolution also known as grant observation of fnches
Short period of time
Mutations
Vary the alleles in a population
1 of the 3 ways it affects phenotype
Stabalizing selection
Speciation
New species evolves
Charles observations
Diversity of life, and fossils
Macroevolution
Over geolgic time; results from microevolution over many generations
gene flow
They move in and out of the gene pool
2 of the 3 ways it affects phenotype
Directinal selection
Allopatric speciation
Geographic separation which doesn't allow species to imbreed
Theroy at glance 1
Organisms Change over time
Population
number of a specific species in an area
Genetic drift
Random changes in small population
3 of the 3 ways it affects phenotype
Distrupted selection
Coevolution
Species in symbiotic relationships tend to evolve together
Theroy at glance 2
Living things with benifitial traits produce more off spring
Gene Pool
all genes of all the members of a population
bottle neck effect
Sudden decrease
How does stabilizing selection effect the phenotype
keeps genes in a narrow window and baby sizes
Gradualism
The geologic and climate conditions are stable
Artifital selection
Humans can breed plants and animals to have useful traits
Population genetics
Science that focuses on the evolution with in a population
Nateral selection
Differnec fitness in a group
How does directional selection effect the phenotype
2 extreme phenotypes are selected
Punctuated equilibrum
when conditions are changing evolution happens more quickly