Term
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Definition
| Emergence of new species from a common ancestor, creating a diversity of new opportunities and problems |
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Term
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Definition
| Variation in relative rates of growth of different body parts |
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Term
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Definition
| A mode of speciation induced when an ancestral population becomes segregated by a geographic barrier or is itself divided into two or more geographically isolated subpopulations. |
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Term
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Definition
| Results from two species interbreeding and mixing chromosomes |
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Term
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Definition
| An individual with two or more chromosome sets, derived from a single species |
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Term
| Biological species concenpt |
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Definition
| Definition of a species as a population or group of populations whose members have the potential to interbreed in nature and produce viable, fertile offspring, but are not able to produce viable, fertile offspring with members of other populations. |
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Term
| Ecological species concept |
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Definition
| Defining species in terms of niches |
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Term
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Definition
| Evolutionary change in timing or rate of organism's development |
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Term
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Definition
| Control overall body plan of organism by controlling the development rate of cells |
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Term
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Definition
| Evolution above species level |
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Term
| Morpohlogical species concept |
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Definition
| Defining species by measuring anatomical criteria |
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Term
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Definition
| Adult organism retains juvenile characteristics of ancestors |
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Term
| Paleontological species concept |
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Definition
| Definition of species based only on fossil record |
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Term
| Phylogenetic species concept |
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Definition
| Definition of a species as a set of organisms with a unique history |
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Term
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Definition
| Organism contains more than two complete chromosome sets |
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Term
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Definition
| Prevent hybrids from becoming fertile adults |
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Term
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Definition
| Impedes mating right from the beginning |
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Term
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Definition
| Long periods of no change interrupted by short periods of change |
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Term
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Definition
| Impede members of two species from making viable offspring |
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Term
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Definition
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Term
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Definition
| Members are anatomically similar and can interbreed |
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Term
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Definition
| A theory maintaining that species living the longest and generating the greatest number of species determine the direction of major evolutionary trends |
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Term
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Definition
| A mode of speciation occurring as a result of a radical change in the genome of a subpopulation, reproductively isolating the subpopulation from the parent population |
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