evolution Flashcards

test (79 cards)

1
Q

the process by which modern organisms have descended from ancient organisms

A

evolution, or change over time

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

who was charles darwin

A

a naturalist, and founder of evolutionary theory

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

During his travels he made numerous ___________________ and collected _______________

A

observations; evidence

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

his most important observations were found in the…

A

galapagos islands

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

He returned to England in _____ and spent ________ years studying his collections.

A

1836; 22

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

he found ______________________________________ in a Brazilian forest.

A

68 different species of beetles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

He was puzzled by why a grassland in _________ and a grassland in __________ would have very different animals living in them.

A

Australia, Argentina

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

No rabbits in _____________________ and no Kangaroos in ______________________.

A

Australia; Argentina

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

He collected _______________ some of which resembled living organisms

A

fossils

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

some that looked like organisms __________________________________________________________________.

A

he had never seen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

he envisioned

A

struggles for food and space, escape from predators, need for shelter among species of the world

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Darwin noticed the _______________ islands were close together but had very different ____________

A

Galapagos; plants and animals

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

He wondered if animals living on different islands had all come from a ___________ ______________

A

common ancestor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

He was very fascinated by the land _______________ and marine _____________.

A

tortoises; iguanas

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

He also collected many ground ______________ and noticed they all had different ________________.

A

finches; beaks

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

He wondered if animals living on different islands had once been members of the same _____________________.

A

species

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Darwin was influenced by great _________ of the time that were challenging views about the ____________ world.

A

thinking; natural

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

1785

A

hutton

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

1798

A

malthus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

1809

A

lamarck

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

1831

A

darwins voyage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

1833

A

lyell

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

1858

A

wallace

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

1859

A

origin of species published

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Earth is shaped by __________ ___________ that took place over long periods of time.
geological forces
26
Who estimated Earth to be _____________________ of years old, not thousands of years old.
Hutton 1785; millions
27
The human population is growing faster than the space and food needed to sustain it. The only thing preventing growth was __________, ___________, and _________________. Who created this?
war, famine, disease Malthus 1798
28
Organisms could acquire traits as a result of experience or behavior. What theory is this by who?
the theory of use and disuse. Lamarck 1809
29
The crab uses the claw as defense. What would happen after use?
Eventually the claw would grow from use and be passed to the offspring.
30
Geological _______________ occurring now have shaped Earth’s geological __________ over long periods of time. Who thought of this?
processes; features. Lyell1833
31
whats an example of Geological processes occurring now have shaped Earth’s geological features over long periods of time.
volcanoes and earthquakes
32
who wrote to his friend Darwin speculating on evolution by natural selection based on his studies of plants and animals.
wallace 1858
33
There were the same ideas Darwin had been mulling over for _________________________.
25 years
34
Darwin published ____________________
the origin of species
35
proposed evolution had been taking place for millions of years spurred on by natural selection.
origin of species
36
He argued that _____________________ mattered and we as humans select that variation through breeding
variation
37
He called the thought that that variation mattered and we as humans select that variation through breeding ____________________________.
artificial selection
38
the theory that All species descended from a few original types of life and have changed due to natural selection.
descent with modification
39
All species were derived from a
common ancestor
40
the theory that Populations adapt to their environment as the proportion of favorable genes increases.
modification by natural selection
41
the Comparison of old fossils to new fossils, like uncompleted jigsaw puzzles (record still incomplete)
the fossil record
42
The finches from the Galapagos lived on specific islands based on beak shape and a finch from the mainland was different from the island finches
geographic distribution of living species
43
Different forms of bones that developed from the same embryonic tissue.
homologous structures
44
Vestigial Organs can be traces of _________________ ____________
homologous structures
45
The embryonic stage of many animals with backbones are similar and produce the same tissues and organs of all vertebrates.
embryology
46
2 examples of structural adaptations
thorns on rose bushes, spines on sea urchins
47
example of mimicry adaptations
the orchid
48
example of camouflage adaptation
flounder
49
physiological
change in metabolic processes
50
2 examples of physiological adaptations
penicillin and insects to insecticides
51
A gene pool consists of all the genes, including all the different __________________________, that are present in a population.
alleles
52
is the number of times that allele occurs in a gene pool compared with the number of times other alleles for the same gene occurs
relative frequency
53
Evolution is ____________________________________ in a population.
any change in the frequency of alleles
54
Genetic variation is studied in populations, which is a group of individuals of the _____________ ____________________________ interbreeding.
same species
55
2 sources of variation are:
mutations and gene shuffling through meiosis and sexual reproduction
56
Natural Selection can affect the distributions of phenotypes in any of 3 ways
stabilizing selection, directional selection, disruptive selection
57
stabilizing selection
favors average individuals
58
directional selection
extreme forms are favored
59
disruptive selection
eliminates intermediate forms
60
example of stabilizing
body size of lizards
61
example of directional
anteater tongues
62
example of disruptive
limpet shell color
63
example of sexual
peacock plumage
64
Over time, a series of chance occurrences of this type can cause an allele to
become common in a population
65
this is called
genetic drift
66
A migration of a small subgroup of a population is known as the
founder effect
67
The 5 conditions required to maintain genetic equilibrium from generation to generation are:
random mating large population size no movement into or out of the population no mutations no natural selection
68
is the process of new species evolving from older ones
speciation
69
As new species evolve, populations become
reproductively isolated from each other
70
3 types of reproductive isolation:
behavioral, geographic, temporal
71
2 populations can interbreed but have differences in courtship rituals
behavioral
72
2 populations are separated by geographic barriers like rivers or mountains
geographic
73
2 species produce at different times
temporal
74
99% of all species that have ever lived are now extinct meaning the species no longer exists
extinction
75
a single species has evolved through natural selection into diverse forms that live in different ways and different habitats
adaptive radiation
76
2 species evolve in response to changes in each other over time (plants and insects)
Coevolution
77
unrelated organisms come to resemble one another (shark and porpoises)
convergent evolution
78
long, stable, periods interrupted by brief periods of more rapid change.
punctuated equilibrium
79