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| In population genetics, this is the loss of genetic variation that occurs when a new population is established by a very small number of individuals from a larger population |
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| In population genetics, this is the transfer of alleles or genes from one population to another |
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| a type of natural selection in which genetic diversity decreases and the population mean stabilizes on a particular trait value. |
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| changes in population genetics in which extreme values for a trait are favored over intermediate values |
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| a mode of natural selection in which an extreme phenotype is favored over other phenotypes, causing the allele frequency to shift over time in the direction of that phenotype |
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| when predators in a food web suppress the abundance and/or alter traits of their prey, thereby releasing the next lower trophic level from predation |
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| the existence of shared ancestry between a pair of structures, or genes, in different species |
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| a mode of natural selection in which some individuals outreproduce others of a population because they are better at securing mates |
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| the process by which humans breed other animals and plants for particular traits |
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| conspicuous coloration or markings of an animal serving to warn off predators |
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| combination of materials, coloration or illumination for concealment, either by making animals or objects hard to see, or by disguising them as something else |
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| a natural phenomenon in which two or more poisonous species, that may or may not be closely related and share one or more common predators, have come to mimic each other's warning signals |
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| a form of mimicry typified by a situation where a harmless species has evolved to imitate the warning signals of a harmful species directed at a common predator |
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| when a top predator controls the structure or population dynamics of the ecosystem |
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| when the nutrient supply and productivity and type of primary producers (plants and phytoplankton) control the ecosystem structure |
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| a proposition that states that two species competing for the same resources cannot coexist if other ecological factors are constant |
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| the atmosphere, the terrestrial biosphere, the oceans, sediments (including fossil fuels, and Earth's interior all form part of what biochemical mechanism |
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| biological species concept |
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| defines a species as members of populations that actually or potentially interbreed in nature, not according to similarity of appearance |
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| phylogenetic species concept |
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| The concept of a species as an irreducible group whose members are descended from a common ancestor and who all possess a combination of certain defining, or derived, traits |
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| Morphological species concept |
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| the term which states that species are defined according to their and anatomical criteria. If they look the same, then they are the same species. |
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| the evolutionary process by which new biological species arise |
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| the process through which new species evolve from a single ancestral species while inhabiting the same geographic region |
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| cells and organisms containing more than two paired sets of chromosomes |
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| proposes that most species will exhibit little net evolutionary change for most of their geological history |
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| the occurrence of related organisms in separate geographical areas with no overlap |
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| speciation that occurs when biological populations of the same species become vicariant — isolated from each other to an extent that prevents or interferes with genetic interchange |
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| Which geological era corresponds with the Cambrian Explosion |
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| Which geological era corresponds with the Dinosaur Extinction |
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| Which geological era corresponds with the diversification and growth of the mammal family |
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| Mass extinction which was volcanic in nature, drove up CO2, caused ozone holes, lost of 50% of marine invert families, 96% of the oceanic species extinct loss of 8/27 insects on land |
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| Mass extinction from a meteor which clouded the sun and killed the dinosaurs |
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| What percent of species that have ever live are extinct? |
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| scientist who worked on Classification |
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| scientist who worked on Gradual geological change |
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| scientist "species can change" |
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| scientist "population limits" |
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| scientist "fossils, extinction" |
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| scientist "modern geology" |
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| scientist "natural selection, evolution, competition" |
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| scientist "natural selection, evolution, adaptation to environment" |
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| direction observation, homology, fossil record, biogeography |
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Definition
| Evidence for evolution is divided into these 4 points |
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| group of organisms found in the same place at the same time that can potentially interbreed within a species |
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Definition
| gene duplication, immigration, mutation, are all |
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| Mechanisms for microevolution |
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Definition
| natural selection, sexual selection, genetic drift, gene flow are all |
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| mating may be attempted but prevented by morphological differences |
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| sperm of one species cannot fertilize eggs of another species |
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| initial hybrids are vigorous and fertile, but subsequent generations are not viable |
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| large regions of Earth where climates conditions are associated with a particular kind of ecological community |
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| number of individuals per unit area or volume |
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| spacing among individuals in a population (not to be confused with dispersal) |
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| +Births, +Immigration, -Death, -Emigration |
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Definition
| The BIDE model stands for? |
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| the term for living together |
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| intrinsic population growth rate per capita per generation equation? |
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