origins of philosophy and modern theories of evolution Flashcards

1
Q

modern synthesis

A

merging genetics and Darwinian evolution.
genes

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2
Q

microevolution

A

changes to genes within a species

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3
Q

macroevolution

A

changes that result in a new species

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4
Q

5 forces of evolution

A

mutation
natural selection
genetic drift
gene flow (exchanging genetic material)
sexual selection (non-random mating; all others are random)

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5
Q

mutation

A

genotypic mutations
phenotype as physiological expression of genetic sequence

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6
Q

stabilizing selection (natural selection)

A

the average phenotype (not necessarily better) has an adaptive advantage over extreme phenotypic form

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7
Q

directional selection (natural selection)

A

during certain conditions, one form of a phenotype is favoured at the expense of other forms

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8
Q

diversifying selection (natural selection)

A

less common phenotypes are favoured at the expense of more frequent phenotypes

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9
Q

species

A

collection of organisms with shared morphology, ecology, genome, reproduction, and behaviour

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10
Q

speciation

A

how new species are formed
post-mating mechanisms

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11
Q

biological species concept (ties to post-mating mechanisms)

A

animals who can produce viable and fertile offspring

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12
Q

post-mating mechanisms

A

13:27

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13
Q

reproductive isolation (pre-mating mechanisms)

A

animals who could breed cann’t anymore due to geographic barriers or activity patterns (i.e. day/night animals don’t cross)

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14
Q

recognition species concept (pre-mating mechanisms)

A

species don’t mate due to different mating signals

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15
Q

Genetic drift

A

events that reduce variation

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16
Q

founder effect (genetic drift)

A

reproductive isolation - migrating populations will determine the genetic makeup of descendants

17
Q

genetic bottle neck (genetic drift)

A

reduction in population size (random i.e. war, genocide, natural disaster), so the new population will only inherit low genetic variety

18
Q

Gene flow

A

movement of traits between populations, increasing genetic variation

19
Q

Admixture (gene flow)

A

hybridization

20
Q

asymmetric gene flow

A

one way; i.e. males impregnate females of other species

21
Q

heterosis (genetic flow)

A

hybrid vigour, offspring inherit advantageous traits from both parents

22
Q

sexual selection

A

non-random
male competition for mates
female choice
generates secondary sex characteristics

23
Q

sexual dimorphism

24
Q

male competition for mates

25
Aristotle promoted... and proposed...
direct observation great chain of being; fixity of species
26
fixity of species (Aristotle)
things are as they have been created, no transformation
27
Zhuang Zhou
idea of Tao: constant state of transformation
28
Islamic Philosophy
transmutation. including from mineral to plant, plant to animal, animal from human.
29
Al-Jahiz
documented zoological description and ecological habitats and animal behavior (in the book of animals)
30
Ibn Khaldun
considered the earliest sociologist. philosophized about human origin, writing that humans must have developed from the world of monkeys.
31
christian philosphy
built upon Greek philosophies. young earth + fixity of species = opposite to evolutionary thought
32
Archbishop James Ussher
using the bible said he discovered the day that earth was created
33
scientific revolution
christian philosophies being challenged. Exploration of the world, our place in it, human body
34
geocentrism
earth is the center of the universe
35
Copernicus
first to suggest Heliocentrism
36
Heliocentrism
the sun is the center of the universe
37
Galileo Galilei
promoted heliocentrism through a story. Arrested by catholic church
38
Andreas Vesalius
founder of modern human anatomy. dissections illustrated by van Calcar
39