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Ch 10 10th Gr Test Quiz Flashcards | StudBud
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Ch 10 10th Gr Test Quiz
Gene flow _.
Which of the following statements is true concerning mutations
Ch 10 10th Gr Test Quiz
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Evolution
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Answers
1
Which of the following statements is true concerning mutations
only mutations that occur in gametes influence evolution
mutations really do not have much influence on allele frequencies
mutations are how all new alleles first arise
mutations create new genetic variation in a gene pool
2
Gene flow _.
most not occur for a population to be at H-W equilibrium
occurs when individuals move into/out of a population
all of the answers are correct
is a force of evolution
3
Which statement best describes directional selection?
one of two extreme phenotypes is selected for
phenotypes in the middle of the range are selected against
one of two extreme phenotypes is selected against
phenotypes at both extremes are selected against
4
Punctuated equilibrium is _.
how Darwin proposed evolution occurs
well supported by the fossil record
a slow form of evolution
none of the answers are correct
5
Evidence for evolution includes _
all of the answers are correct
anatomical evidence
the fossil record
DNA sequence analysis
6
The Galapagos tortoises _.
have differently shaped shells depending on which islands they inhabit
are able to swim between islands to eat any available food
evolved as the Galapagos islands separated from each other
all of the answers are correct
7
Examples of homologous structures include _.
the wings of a bat and the limbs of a cat
the limbs of a cat and limbs of a tortoise
none of the answers are correct
the wings of a bat and bird
8
The type of evolution that the Grants observed was _.
microevolution
comparative evolution
stabilizing evolution
macroevolution
9
In a population with 100 members, if 81 are homozygous DOMINANT, how many have the RECESSIVE phenotype (Yes, HW)
19
18
1
2
10
During the voyage of the
Beagle
, Darwin _.
experienced an earthquake that lifted the ocean floor 9 feet
all of the answers are correct
saw many plants and animals he had never seen before
dug up fossils of gigantic extinct mammals
11
In a population with 200 members, the total number of copies of each gene in the population is _. (No HW)
400
100
300
200
12
How long did the voyage of the
Beagle
last?
5 months
2 years
5 years
4 years
13
The conditions for H-W equilibrium include that _.
no mutations
non-random mating is occuring
all of the answers are correct
only a few individuals move into/out of a population
14
The Grants _.
actually observed evolution by natural selection taking place
all of the answer choices are correct
studied the migration of camels
spent more than 30 years studying Darwin's tortoises
15
The main difference between macro and microevolution is _.
the timeframe of the evolutionary process
all of the answers are correct
the species that evolve during each
micro is for small organisms, macro is for large organisms
16
An example of coevolution would be _.
the hummingbird and the tubular flower it pollinates
all of the answers are correct
the toad and the flies they eat
the evolution of wings in bats and birds
17
Natural selection states that _
a change in species occurs over time
all of the answer choices are correct
fitness is an organism's ability to survive and produce fertile offspring
nature selects the variation that is most useful for survival
18
Comparative anatomy is the study of _
similarities and differences in the structures of different species
sexual dimorphism of sexually reproducing species
embryos of unrelated living organisms
fossils of organisms that have gone extinct
19
Where did Darwin make some of his most important observations?
South Africa
South America
Galapagos Islands
England
20
Comparison of DNA sequences shows that we are most closely related to _.
baboons
monkeys
gorillas
chimpanzees
21
A theory that helps to explain and unify all of biology is the theory of _.
adaptation
speciation
evolution
selection
22
Island biogeography _.
provides info on the migration/evolution of apes
provides info on the migration/evolution of camels
none of the answers are correct
provides info on the migration/evolution of finches
23
Which statement is true concerning gradualism?
Darwin thought evolution occurred this way
this type of evolution is supported by the fossil record
all of the answer choices are correct
occurs when geologic/climate conditions are stable
24
In a population with 200 members, if there are 300 dominant alleles, how many recessive alleles are there? (No HW)
200
100
25
50
25
Which statement best describes sympatric speciation?
speciation without genetic separation
speciation without geographic separation
speciation without any separation
speciation without reproductive separation
26
Biogeography shows that all camels _.
evolved from the llama
came from ancestors that lived in North America
came from ancestors that lived in North Africa
came from ancestors that lived in North Egypt
27
While on the
Beagle
, Darwin's observations included _
all of the answers are correct
fossils of gigantic living animals
rocks containing mountain fossils were found in the sea
rock ledges that had once been beaches
28
The main difference between gradualism and punctuated equilibrium is _.
gradualism occurs when geologic/climatic conditions are changing
punctuated equilibrium occurs when geologic/climatic conditions are stable
gradualism occurs quickly, punctuated equilibrium does not
punctuated equilibrium occurs quickly, gradualism does not
29
The evolution of sexual dimorphism comes about through _.
disruptive selection
directional selection
artificial selection
none of the answer choices
30
Fossils are _.
all of the above
a complete record of evolution
distinct and direct evidence of evolution
the most significant evidence of evolutionary relationships between species
31
The hawthorn fly _
can live on hawthorn or apple trees
all of the answers are correct
has been geographically isolated
undergoing allopatric speciation
32
Which of the following describes disruptive selection?
phenotypes at both extremes are selected against
phenotypes in the middles are selected against
one of two extreme phenotypes is selected for
one phenotype is disrupted and goes extinct
33
Biogeography _.
proves that all camels came from Egypt and N. America
is the science of studying maps
has taught us the migration patters of certain species
was developed by Darwin
34
Genetic drift _.
occurs due to the bottleneck effect, when a few individuals start a new pop
occurs due to the founder effect, which may happen after a forest fire
occurs due to the bottleneck effect, which may happen after a forest fire
is the non-random change in allele frequency that occurs in sm populations
35
All of the following are forces of evolution EXCEPT _.
genetic drift
gene flow
mutation
gradualism
36
An example of a vestigial structure is the _
human tailbone
kangaroo pouch
cat forelimb
all of the answers are correct
37
The Grant's _.
all of the answers are correct
spent more than 30 years studying the same thing
observed evolution by natural selection taking place
studied Darwin's finches on the Galapagos Islands
38
The strongest evidence for evolution from a common ancestor is _.
similar fossils
similar body structures
similar embryological structures
similar DNA sequences
39
Examples of analogous structures are _.
all of the answers are correct
the tails of mice and rats
the limbs of humans and apes
the wings of bats and birds
40
Which is true about horse evolution?
horses moved from the land into the sea
early horses had toes
during evolution, their molars became covered with cement
early horses were about the size of a fox
