class 1 Flashcards

1
Q

tenets of the scientific revolution

A

direct observation
challenging bias
expanding understanding of the world

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2
Q

biological concept of species (John Ray)

A

animals are the same species if they produce viable offspring

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3
Q

Ray’s taxonomy

A

Genus
Species

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4
Q

who standardized Ray’s classification

A

Carolus Linnaeus (binomial nomenclature)

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5
Q

Linnaeus

A

binomial nomenclature and added class and order to taxonomy

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6
Q

binominal nomenclature

A

using genus and species to name animals

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7
Q

comparative anatomy (comte de Buffon)

A

compared animals for differences in skeleton and physiology

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8
Q

Center of origin

A

animals w similar features might be related, having common ancestor

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9
Q

Comte de Buffon

A

comparative anatomy, center of origin, start of connection between animal form and environment

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10
Q

Erasmus darwin

A

abolitionist; warm-blooded animals come from common ancestor

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11
Q

use-disuse theory

A

used parts are improved and disused ones (discredited bc of this) extinguish

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12
Q

Lamarck’s theory of evolution

A

the inheritance of acquired characteristics (use-disuse)

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13
Q

Cuvier

A

father of paleontology
established idea of extinction
incorporated fossils into taxonomy
added Phylum to taxonomy

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14
Q

Cuvier Catastrophism

A

large scale catastrophes caused mass extinctions, explaining the amount of fossils found
Cuvier was creationist - earth is young and created by god

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15
Q

James Hutton

A

father of geology
start to question how old was the earth dues to uniformitarianism

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16
Q

uniformitarianism

A

geologic forces (that take time to change earth) must happen in the same rate in past as in the present

17
Q

influencers of natural selection

A

Charles Lyell
Thomas Malthus

18
Q

Lyell

A

climate change
geologic time, deep time
pushing idea that the earth was old

19
Q

Malthus

A

food availability dictates population size
humans reproduce faster than the environment can produce food (leading to competition)

20
Q

Malthus’ principles of population

A

in each generation, more offsbring born and survived to adulthood
competition for resources
biological variation among individuals (becoming physiologically different in dif. individuals)

21
Q

Charles Darwin beginning

A

travelling and collecting natural history specimens
in Brazil, noticing differences in behaviour between slaves and colonizers
observing finches in Galapagos - physiological dif. based on what they eat
back from trip, observes artificial selection

22
Q

artificial selection

A

human decision

23
Q

Darwin’s transmutation

A

change of one species into another over time with natural selection

24
Q

Darwin’s biogeography

A

distributions of species through space and time

25
Q

Darwin’s adaptive radiation

A

many species emerge from common ancestor (like center of origin)

26
Q

Darwin’s natural selection

A

process of biological change in species through which adaptive radiation can occur. selection done by environment/biological diversity, where advantageous traits favour reproduction

27
Q

Wallace in Southeast Asia

A

noticing animals in specific boundaries and nowhere else

27
Q

Wallacea

A

ecological boundary

28
Q

on the tendency of varieties to depart indefinitely from the original type (1858), Wallace

A

same thing as natural selection and adaptive variation.
influences darwin to post his book (1859) quickly

29
Q

differences between Darwin & Wallace

A

Darwin - competition (the pressure) between individuals of same species to survive and reproduce
Wallace - environmental pressures on species forcing them to become adapted to local environment

30
Q

natural selection

A

process where individuals with favourable variation survive & reproduce at higher rates than those with unfavourable traits

31
Q

8 key elements of natural selection

A
  1. all species produce offspring at faster rate than food supply can increase
  2. biological variation exists within all species
  3. competition - more individuals are produced than can survive
  4. those who survive competition reproduce and pass on
  5. selective pressures - the environment will determine whether a trait is favourable
  6. fitness - Individuals with favourable traits have a reproductive advantage
  7. favourable variations accumulate over time;
  8. speciation - trait variation and geographic isolation can lead to new species
32
Q

8 key elements of natural selection (compressed)

A
33
Q
A