Evolution - Concept 1
Terms in this set (15)
A process in which individuals that have certain inherited traits tend to survive and reproduce at higher rates than other individuals because of those traits.
Selection that favors phenotypes at one extreme of a trait's range.
Selection that favors the intermediate (middle) phenotype
Selection that favors both extremes of a phenotype but not the intermediate.
Small changes occurring within species, such as changes in allele frequencies.
Evolution on a large scale affecting changes in species across populations
Proposed a theory of evolution based on use/disuse or by inheritance of acquired traits.
Hutton & Lyell
Theorized that the earth was very old, changing gradually over time.
Proposed a system of classification based on physical similarities.
Ability of an organism to survive and reproduce in its environment
All alleles in a given population
A change in the allele frequency of a population as a result of RANDOM CHANCE events rather than natural selection.
A change in allele frequency of a population as a result of immigration or emigration.
Non-random mating. Organisms select a sexual mate based on physical or behavioral traits that are not necessarily related to survival.
Idea that the allele frequences in a population will remain constant. In other words, there is no evolution taking place.