Evolution Flashcards

(31 cards)

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
gene pool
all the genes and alleles in a population
26
single gene traits and examples
when a single gene codes for a trait ex: eye color
27
polygenic gene traits and examples
when two or more genes code for a trait ex: skin color
28
3 sources of genetic variation
mutations, genetic recombination, lateral gene transfer
29
mutations, example
heritable changes in the DNA sequence, sickle cell disease
30
genetic recombination, example
crossing over process where genes recombine, Prophase 1 of meiosis
31
lateral gene transfer, example
genes passing from organism to another, not through reproduction, fungi to aphids