Evidence Of Evolution Flashcards
Anatomically similar structures inherited from a common ancestor
Homolougous structures
Morphological adaptations that allow organisms to blend in with their environments
Camoflouge
Structures that are the reduced form of functional structures in other organisms
Vestigial structures
The study of the distribution of plants and animals around the world.
Biogeography
An early, pre-birth stage of an organisms development
Embryo
Structures that are used for the same purpose and similar in construction but are not inherited from a common ancestor
Analogous structure
Morphological adaptation in which on species evolves to resemble another species
Mimicry
A measure of the relative contribution that an individual trait makes to the next generation.
Ancestral traits
More primitive features that do not appear ancestral forms
Fitness
Newly evolved features that do not appear in the fossils of common ancestors.
Derived trait
Breeders would cross individuals with desired traits
Artificial selection
Theory of evolution developed by Darwin based in four ideas
Natural selection
Heredity changes in groups of living organisms over time
Evolution
List and describe the four basic principles if evolution
Variety, heredity, overpopulation, reproduction
Individuals in a population that differ from one another
Variety
Variations are inherited from parents
Heritability
Populations produce more offspring that can survive
Overpopulation
Some variations allow the organism that processes them to have more offspring than the organism that doesn’t posses them.
Reproductive advantage
Heredity changes in groups of living organisms over time.
Evolution
Trace of once living organisms
Fossils
Any change in the allele frequencies in a population that results from change
Genetic Drift
Drift that occurs when a population declines to a very low number and then rebounds, reducing the allele diversity of the population.
Bottleneck
Genes entering and leaving a population
Gene flow
Acts to select the individuals. That are best adapted for survival and reproduction
Natural selection
When at one point animals and other organisms look the same at early stages of birth
Comparative embryology
They share common DNA
ex:Dog: HGCEDG
Donkey: CGCDDG
Comparative biochemistry
Climate effects the organism (south America-north America)
-Galaopogos-
Geographic distribution