Natural Selection

Note from Mr. W. I’m keeping this only for archival purposes. It’s no longer required in my curriculum sequence. Instead, please use this recent interactive tutorial.

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Natural Selection Flashcards

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[h]Natural Selection Flashcards

[i]Darwin’s great idea:

Constant selective pressure

Makes adaptations

 

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[q unit = “U1: Course Themes; Evolution and Natural Selection” topic = “M2: Natural Selection, Sexual selection)”]List the five steps by which natural selection occurs.

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[a]1) Inherited variation and 2) overproduction of offspring results in 3) differential survival (of offspring), which leads to 4) selection for beneficial traits. 5) Repetition (of this process leads to) adaptation.

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[q unit = “U1: Course Themes; Evolution and Natural Selection” topic = “M2: Natural Selection, Sexual selection)”]What are the last names of the two naturalists who developed the idea of natural selection.

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[a]The two naturalists who developed the idea of natural selection were Darwin and Wallace.

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[q unit = “U1: Course Themes; Evolution and Natural Selection” topic = “M2: Natural Selection, Sexual selection)”]Define evolution.

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[a]Evolution is “the process by which different kinds of living organisms are thought to have developed and diversified from earlier forms during the history of the earth.” (New Oxford American Dictionary).

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[q unit = “U1: Course Themes; Evolution and Natural Selection” topic = “M2: Natural Selection, Sexual selection)”]Define “adaptation.”

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[a]Adaptations are structures (including molecular structures) and behaviors that aid an organism in surviving and reproducing.

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[q unit = “U1: Course Themes; Evolution and Natural Selection” topic = “M2: Natural Selection, Sexual selection)”]In terms of evolution, the type of variation that matters most is variation that is______________.

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[a]In terms of evolution, the type of variation that matters most is variation that is inherited.

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[q unit = “U1: Course Themes; Evolution and Natural Selection” topic = “M2: Natural Selection, Sexual selection)”]All populations produce ______________ at a rate that far exceeds that population’s actual growth rate.

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[a]All populations produce offspring at a rate that far exceeds that population’s actual growth rate.

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[q unit = “U1: Course Themes; Evolution and Natural Selection” topic = “M2: Natural Selection, Sexual selection)”]All populations produce offspring at a rate that far exceeds that population’s actual ________ _____.

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[a]All populations produce offspring at a rate that far exceeds that population’s actual growth rate.

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[q unit = “U1: Course Themes; Evolution and Natural Selection” topic = “M2: Natural Selection, Sexual selection)”]In our five part model of natural selection, the second idea after “inherited variation” is ____________.

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[a]In our five part model of natural selection, the second idea after inherited variation is overproduction of offspring.

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[q unit = “U1: Course Themes; Evolution and Natural Selection” topic = “M2: Natural Selection, Sexual selection)”]A key idea of evolution is that many are born but few _______________.

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[a]A key idea of evolution is that many are born but few survive.

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[q unit = “U1: Course Themes; Evolution and Natural Selection” topic = “M2: Natural Selection, Sexual selection)”]In our five part model of natural selection, the third idea is _____________ ____________

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[a]In our five part model of natural selection, the third idea (which follows “inherited variation” and “overproduction of offspring” is differential survival.

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[q unit = “U1: Course Themes; Evolution and Natural Selection” topic = “M2: Natural Selection, Sexual selection)”]When a predator eats a poorly camouflaged prey, that predator is literally consuming ___________ for poor camouflage, and inadvertently ____________ for a population of prey with better camouflage.

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[a]When a predator eats a poorly camouflaged prey, that predator is literally consuming genes for poor camouflage, and inadvertently selecting for a population of prey with better camouflage.

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[q unit = “U1: Course Themes; Evolution and Natural Selection” topic = “M2: Natural Selection, Sexual selection)”]In our five part model of natural selection, the result of differential survival (which itself follows “inherited variation and “overproduction of offspring,”) is ______________________.

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[a]In our five part model of natural selection, the result of differential survival (which itself follows “inherited variation and “overproduction of offspring,”) is selection for beneficial traits.

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[q unit = “U1: Course Themes; Evolution and Natural Selection” topic = “M2: Natural Selection, Sexual selection)”]Natural selection only results in adaptation if it’s _________________ for many _______________ in the same _________________.

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[a]Natural selection only results in adaptation if it’s repeated for many generations in the same direction

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