A4.1 Evolution and speciation HL Flashcards

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1
Q

Allopatric Speciation

A

Speciation occurring due to physical separation of populations

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2
Q

Sympatric Speciation

A

Speciation occurring within the same geographic area

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3
Q

Geographical Isolation

A

Physical barriers that lead to reproductive isolation

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4
Q

Behavioural Isolation

A

Differences in mating behaviors that prevent interbreeding

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5
Q

Temporal Isolation

A

Different breeding times preventing species from mating

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6
Q

Adaptive Radiation

A

Rapid diversification of species from a common ancestor to fill various ecological niches

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7
Q

Hybridisation

A

Cross-breeding of two different species

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8
Q

Prezygotic Barriers

A

Biological factors that prevent mating or fertilization between species

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9
Q

Postzygotic Barriers

A

Factors that occur after fertilization that prevent hybrids from being viable or fertile

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10
Q

Marsupials in Australia

A

Example of adaptive radiation

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11
Q

Polyploidy

A

Presence of extra sets of chromosomes in cells

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12
Q

Allopolyploidy

A

Polyploidy resulting from hybridization between different species

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13
Q

Speciation in Plants

A

Role of polyploidy in plant speciation

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14
Q

Hybrid Vigor

A

Increased vitality or other superior qualities arising from crossbreeding

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15
Q

Knotweed

A

Example of allopolyploidy in plant speciation

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