Evolution Flashcards

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1
Q

evolution definition

A

process when different organisms develop and diversify from each other to adapt to their environments

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2
Q

MRSA

A

Methicilin Resistant Staphylococcus Aureus: resistance against staph infection treatments, genetically different

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3
Q

Bajau People

A

adapted to have bigger spleens for more oxygenated blood to hold breath for longer

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4
Q

Andes People

A

take shorter breaths because they have less hemoglobin in their blood to adapt to thinner air

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5
Q

Himalayan People

A

have broader arteries so they take faster breaths to combat thin air

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6
Q

James Hutton

A

deep time, forces beneath earth were mountains, that were then shaped by erosion

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7
Q

Charles Lyell

A

geological processes shape Earth over time, and are still happening

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8
Q

Jean Baptiste Lamarck’s hypothesis

A
  • Use and disuse
  • Inheritance of acquired traits
  • Tendency toward perfection
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9
Q

Use and disuse

A

Organisms can alter their organs to benefit themselves in new environments

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10
Q

Inheritance of acquired traits

A

Organisms can acquire the use of an organ in their lifetime that will be passed down

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11
Q

Tendency toward perfection

A

Organisms are constantly developing features to live in environments successfully

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12
Q

other pieces of evidence supporting evolution

A
  • Fossil Records
  • Homo/analogous body structures
  • Embryonic development
  • genetics/ molecular biology
  • biogeography
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13
Q

Homologous Structures

A

same basic anatomical structures showing up in different but related species

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14
Q

Analogous Structures

A

body parts serving similar use, but different structure, not related

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15
Q

embryonic development

A

embryos of distantly related species with similar features during early development

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16
Q

genetics/ molecular biology

A

genetic changes can be documented over time

17
Q

biogeography

A

distantly related species/ non-related species showing different and same adaptations based on area

18
Q

convergent evolution

A

organisms that aren’t closely related showing similar adaptations based on environment

19
Q

divergent evolution

A

closely related organisms differing from each other due to different environments

20
Q

3 different reproductive isolations

A
  • Temporal
  • Behavioral
  • Geographical
21
Q

Temporal

A

mating at different times

22
Q

Behavioral

A

different reproductive practices

23
Q

Geographical

A

Geographical barrier separating two species

24
Q

Darwin’s Finches 5 steps

A
  • founders arrive
  • geographic isolation
  • change in gene pool
  • reproductive isolation
  • competition
25
Q

gene pool

A

all the genes and alleles in a population

26
Q

single gene traits and examples

A

when a single gene codes for a trait ex: eye color

27
Q

polygenic gene traits and examples

A

when two or more genes code for a trait ex: skin color

28
Q

3 sources of genetic variation

A

mutations, genetic recombination, lateral gene transfer

29
Q

mutations, example

A

heritable changes in the DNA sequence, sickle cell disease

30
Q

genetic recombination, example

A

crossing over process where genes recombine, Prophase 1 of meiosis

31
Q

lateral gene transfer, example

A

genes passing from organism to another, not through reproduction, fungi to aphids