biodiversity and evolution Flashcards

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1
Q

Biological Evolution

A

The change in inherited traits over successive generations in population of organisms

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2
Q

Population

A

a group of individuals that are the same species

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3
Q

Small scale (micro-evolution)

A

going from one generation to the next and considering the changes in a population

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4
Q

Large Scale (evolution)

A

What you see when you look at the over-arching history of life, including divergence of populations and the creation of different species from a common ancestor over generations

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5
Q

Alfred Russel Wallace

A

also realized that populations of organisms change by adapting to change in the environment

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6
Q

Alfred Russel Wallace: also realized that populations of organisms change by adapting to change in the environment

A

Migration (gene flow)

founder effect

genetic drift

bottleneck

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7
Q

natural selection

A

Is the process whereby organisms that happen to be better adapted to their environment, tend to survive and produce more offspring; relies on genetic diversity

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8
Q

Mutation events

A

can happen during the cell division process that producers egg and sperm

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9
Q

Mutations:

A

permanent changes in genetic information that can be passed down from parent to offspring if they occur in the gametes; source of new traits in a population organism

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10
Q

components necessary for evolution

A
  • variation or more than one version of a trait
  • heritable trait/ a trait passed down from parent to offspring vie genetics
  • differential reproduction/ An individual possessing the trait must have a reproductive advantage compared to individuals who don’t possess the trait; Those offspring must be viable and fertile
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11
Q

Theory of macroevolution is supported by..

A
  • fossil record, genomic records, similarities in structure, embryo development
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