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Definition
| Speciation can occur in two ways, either with ___ or without it |
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Definition
| A new species forms while isolated from its parent population. |
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Definition
| A small population becomes a new species without geographic separation. |
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Definition
| In ___, gene flow is interrupted when a population is divided into geographically isolated subpopulations |
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Definition
| In ___, one or both populations undergo evolutionary change during the separation |
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Definition
| In order for allopatric speciation to occur, ___ must be established |
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Term
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Definition
| In order for ___ to occur, reproductive isolation must be established |
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Definition
In ___, speciation takes place in geographically
overlapping populations |
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Term
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Definition
| This type of speciation is probably not very common in the wild |
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Term
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Definition
| the occurrence of extra sets of chromosomes from accidents during cell division |
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Term
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Definition
| This has caused the evolution of some new plant species |
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Term
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Definition
| ___ is an individual with more than two chromosome sets, all derived from a single species |
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Term
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Definition
| ___ is a species with multiple sets of chromosomes from different species |
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Term
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Definition
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Term
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Definition
| a species with multiple sets of chromosomes derived from different species |
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Term
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Definition
| In some fish, ___ has resulted from sexual selection |
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Term
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Definition
| In some fish sympatric speciation has resulted from ___. |
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Term
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Definition
| the evolution of a group of taxa from a common ancestor |
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Term
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Definition
| This can happen when a species is introduced to new environmental opportunities |
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Term
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Definition
| ___ is one of the world’s great showcases of adaptive radiation |
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Term
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Definition
| The ___ is one of a diverse group of honeycreeper birds descended from a single common ancestor |
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Term
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Definition
| The I’iwi is one of a diverse group of ___ descended from a single common ancestor |
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Term
| Niles Eldredge and Stephen Jay Gould |
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Definition
| ___ and ___ coined the term punctuated equilibrium to describe these periods of apparent stasis punctuated by sudden change |
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Term
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Definition
| Niles Eldredge and Stephen Jay Gould coined the term ___ to describe these periods of apparent stasis punctuated by sudden change |
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Term
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Definition
| Species descended from a common ancestor gradually diverge more and more as they acquire unique adaptations |
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Term
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Definition
| A new species changes most as it buds from a parent species and then changes little for the rest of its existence. |
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Term
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Definition
| ___ is the cumulative change of thousands of small changes |
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Term
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Definition
| Most biological innovations ___ from earlier structures |
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