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Evolution
Evolution
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A #evolution #review
Flashcards
32 cards
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Questions
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1
I find a fossil buried deep in the earth. The depth allows me to conclude...
the strata depth doesn't tell us anything
the relative age
the type of organism
all the descendants
2
What idea did Darwin take from Malthus?
struggle for survival
pursuit of perfection
variable fitness
3
A coral releases sperm into the ocean currents, to randomly find an egg. This is an example of
the bottleneck effect
random mating
gene flow
migration
4
Rheas, Emus, and Ostriches aren't related, but they look very similar. This is an example of...
artificial selection
biogeography
vestigial structures
homology
5
Rheas in South America show variation in different climates. This is an example of...
artificial selection
vestigial structures
homology
biogeography
6
We often use ____ homologies to create phylogenetic trees.
molecular
vestigial
anatomic
embryonic
7
What are strata?
layers of a cake
mineralized organisms
layers of sediments
volcanic eruptions
8
Who believed the world was overcrowded?
Darwin
Lamarck
Malthus
Franklin
9
Why were the geologists important?
they proposed evolution by natural selection
they suggested the world was really old
they were Darwin's friends
they believed in the biblical creation stories
10
What are transitional forms?
similar embryonic stages between species
similar body structures between species
similar molecules between species
species that show features both ancient and modern features
11
What is NOT a component of natural selection?
bones fossilize in mineralized sediments
naturally heritable variation
struggle for survival
variable fitness
12
What do we call a change in allele frequency?
natural selection
evolution
microevolution
13
What is NOT a Hardy-Weinberg condition?
No migration
Populations must be very small
No mutation
Random Mating
14
What is this?
vestigial structure
anatomic homology
molecular homology
embryonic homology
15
What are fossils?
a rock layer
old people
something that has been mineralized
something that has decayed
16
What is an analogous structure?
a similar feature that indicates a common ancestor
a similar feature that does NOT indicate a common ancestor
a vestigial structure
17
If I have 100 organisms in a population, how many alleles are in the gene pool?
50
200
100
18
What do we mean by fitness?
measure of reproductive success
naturally heritable variation
struggle to survive
19
What is the unit of evolutionary change?
community
ecosystem
species
population
20
A group of Dutch colonists arrive in South Africa and set up camp. This is..
gene flow
The founder effect
migration
The bottleneck effect
21
A wildflower population is caught in a fire. Half the flowers die. What is this an example of?
gene flow
the founder effect
migration
The bottleneck effect
22
What is an adaptation?
the struggle to survive
a measure of reproductive success
a trait that increases an organism's ability to survive
23
What do we mean by "descent with modification?"
over our lifetime, we modify our appearances
living species descend with modifications from ancestors
ancestors modified their bodies by use or disuse
24
A farmer selecting the largest fruit trees to pollinate is an example of...
artificial selection
homology
natural selection
biogeography
25
What type of selection pattern is this?
Stabilizing
Disruptive
Directional
26
What is this?
molecular homology
vestigial structure
anatomic homology
embryonic homology
27
What do we call the evolutionary history of a species?
embryos
phylogenies
homologies
analogies
28
What are "acquired characteristics?"
traits that evolve over generations
traits acquired over a lifetime
traits that are inherited from your parents
29
What type of selection pattern is this?
Stabilizing
Disruptive
Directional
30
What type of selection pattern is this?
Stabilizing
Directional
Disruptive
31
Who believed organisms evolved out of a pursuit of perfection?
Darwin
Franklin
Malthus
Lamarck
32
What does Natural Selection work on?
phenotype
genotype
