Evolution Flashcards

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1
Q

how do we measure evolution?

A

genereations

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2
Q

what is a well supported testable explanation of phenomena that have occurred in the natural world

A

scientific theory

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3
Q

why is growth and development not considered evolution?

A

they are changes that occur in an organisms lifetime

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4
Q

what ship did Darwin go on and how long was his journey?

A

HMS Beagle and 5 years

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5
Q

his observations on mainly the _____ _____ contributed to his hypothesis about evolution

A

galapagos islands

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6
Q

what were the five scientists that influenced Darwin while shaping his theories

A

hutton and lyell, malthus, lamarck, wallace

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7
Q

who gave evidence to earth being older than what what was thought

A

hutton and lyell

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8
Q

who predicted that the human population will grow faster than the space and supply needed to support

A

malthus

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9
Q

who thought organisms evolved in their lifetime

A

lamarck

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10
Q

who triggered darwin to publish his work bc he had the same idea?

A

wallace

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11
Q

the theory of evolution says that those who _____ better survive

A

adapt

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12
Q

what is variation

A

the slight differences of organisms in the same species that help them to survive

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13
Q

what is survival of the fittest

A

those individuals that have variations that are advantages are most likely going to survive

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14
Q

traits of those best suited to an _____ will increase in _____

A

environment

population

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15
Q

what is the development of a new species over time

A

speciation

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16
Q

what term means that the best adapted organisms survive and reproduce

A

natural selection

17
Q

what is an example of proof for evolution?

A

fossils, the oldest ones are the simplest

18
Q

embryology suggests…

A

vertebrate embryos are very similar which means that they all come from common ancestor

19
Q

what are vestigial features

A

structures that are not used/reduced in size

20
Q

what are homologous structures

A

similar structures that indicate a common ancestor

21
Q

geographic isolation

A

when two populations are separated and cannot interbreed, each becomes different, new species

22
Q

what is the % of a specific allele in a population

A

allelic frequency

23
Q

what is a population that the frequency of alleles remains the same over generations

A

genetic equilibrium

24
Q

all of the genes including different alleles that exist in a population

A

gene pool

25
Q

what are environmental factors that change genes as well as meiosis ad mitosis

A

mutation

26
Q

what is the number of times an allele occurs in the gene pool

A

relative frequency

27
Q

what is a random change in allele frequency that occurs in small populations

A

genetic drift

28
Q

what is genetic drift caused by

A

individuals entering or leaving a population

29
Q

what is the transport of genes by migration

A

gene flow

30
Q

what causes speciation to happen

A

geographic and reproductive isolation

31
Q

what are the two theories of speciation

A

polyploidy and gradualism

32
Q

what is the multiple of the normal set of chromosomes

A

polyploidy

33
Q

what is punctuated equilibrium

A

speciation occurs in rapid bursts

34
Q

what word means “things change over time?”

A

evolution