Evolution Flashcards

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1
Q

Evolution

A

A change over time

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2
Q

Adaption

A

Heritable trait that helps organisms survive/ reproduce

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3
Q

Fitness

A

How well an organism can survive/ reproduce in its environment

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4
Q

Fossil

A

remains and traces of ancient organisms

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5
Q

Bio-geography

A

Study of where organisms live now and where their ancestors lived

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6
Q

Gene Pool

A

All genes present in a population

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7
Q

Genetic Variation

A

Genetic differences in a population

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8
Q

Allele Frequency

A

Number of times an allele shows up in a gene pool

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9
Q

Genetic Equilibrium

A

When a population doesn’t evolve

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10
Q

Artificial Selection

A

Humans breeding animals for desired traits

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11
Q

Natural Selection

A

Organisms in nature that have suitable traits for their environment that they develop

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12
Q

Sexual Selection

A

females of a species picking a mate based on size, strengths, or color (non-random mating)

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13
Q

Genetic Drift

A

random change in allele frequency

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14
Q

Bottleneck Effect

A

a change in allele frequency with a big reduction of a population

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15
Q

Founder Effect

A

Allele frequency changes because of migration

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16
Q

Reproductive Isolation

A

Species don’t inbreed and evolve into a new species

17
Q

Homologous Structure

A

Similar structures shared with related species inherited from ancestors

18
Q

Analogous Structure

A

Similar Structure with different species who don’t share a common ancestor

19
Q

What does the thumb represent?

A

Natural Selection

20
Q

What does the index finger represent?

A

Gene Flow

21
Q

The Middle finger is for mutation

A

true

22
Q

The ring fingerr is for genetic Drift

A

False
The ring finger is for non-random mating

23
Q

What does the pinky represent?

A

Genetic Drift