Bio Vocab 5 Flashcards
A model of how the evolutionary history likely occurred
Evolutionary Tree
Evolution ca be measured by comparing ____ over time
Allele Frequency
The percentage of the population with a particular set of alleles
Genotype frequency
A population that is experiencing no change in allele frequency from one generation to the next is on
Hart Weilburg Equilibrium
A grouping of organisms that includes a common ancestor and all of its descendant species
Monophyletic group
Changes to DNA allow for differences in populations
Variation by mutation
The ability to reproduce in large enough numbers that will cause the population to reach a carrying capacity
Biotic potential
A trait that is passed on from one generation to the next is said to be
Heritable
Similar traits in different species that were inherited from a common ancestor
Homologous
Similar traits in different species that were NOT inheritors from a common ancestor
Analogy
The most common form of evolution; driven by the influence of ecosystems
Natural selection
When two species revolved from the same population long ago it is said that they share a
Common ancestor
_____ provides an important evidence of evolution by showing a shared developmental path before birth
Embryology
____occurs when to distinct species experience similar natural selection that results in similar independently evolved traits
Convergent evolution
The ___ must be met for natural selection to occur
Postulates of natural selection
Organisms in or conditions of an ecosystem that prevent a population from growing exponentially
Limiting factors
The ability of some individuals to survive and reproduce better than other individuals
Differential fitness
____ is determined by both the reproductive success of an individual over its lifetime
Evolutionary fitness
A population where one biological sex seeks partners with specific traits over those that do not have those traits
Sexual selection
_____ results when a small population survives or founds a new colony but does not represent the genetics of the original population
Genetic drift
Large migrations from one population to another that has the potential to alter the genetics of the population
Gene flow
___ theory uses traits such as lifespan reproduction and growth to understand evolutionary fitness
Life history
A hypothetical organism that can live forever, reproduce immediately after birth, and have an infinite number of offspring
Darwinian demon
_____ are ancestral traits found in most of the population but no longer have a function
Vestigial structures
An ancestral trait that is rarely found in the population but occasionally reappears in newborns with specific mutations
Ativism
