WorksheetsPre-Test: Evolution of Life
Total questions: 50
Worksheet time: 1hrs 10mins
Name
Class
Date
1.
During meiosis (sperm formation), a developing male pig had a change in his DNA that resulted in his coat becoming spotted.
a)
Genetic Drift
b)
Non-random mating
c)
Mutation
d)
Natural Selection
2.
Five hundred years after deer had established a flourishing population in a national park, some of them venture back to their original woods and mate and have offspring with the deer there.
a)
Genetic Drift
b)
Mutations
c)
Non-random mating
d)
Gene flow
3.
7 wild mustangs were taken from the prairies of Oklahoma after a Texas rancher purchased them and provided them with their own pasture. Those 7 mustangs eventually reproduced to have 122 offspring.
a)
Genetic Drift (small population)
b)
Non-random mating
c)
Gene flow
d)
Mutations
4.
Bats are common in Texas, especially in rocky regions. Bats with longer hang claws have demonstrated higher fitness because of their ability to cling to rock while resting.
a)
Adaptation
b)
Non-random mating
c)
Gene Flow
d)
Mutation
5.
Wolves from the Arizona mesa were transferred to the Colorado Rockies after a forest fire destroyed their habitat. They quickly became part of the local pack and had offspring.
a)
Mutation
b)
Natural Selection
c)
Genetic Drift
d)
Gene Flow
6.
Which of the following is an example of reproductive isolation?
a)
two populations of finches that cannot produce viable offspring
b)
two populations of finches that have different feather colors
c)
two populations of salamanders that live in different lakes
d)
two populations of salamanders that have different tail lengths
7.
Gentoo penguins will present a mate with a pebble that they find to attract a mate. Emperor penguins have a specific call and movement that they make to attract a mate. Which type of isolation do these penguins demonstrate?
a)
temporal isolation
b)
behavioral isolation
c)
geographical isolation
d)
anatomical isolation
8.
On island chains like the one shown below, animal populations that spread from the main island to the other islands can evolve into separate species. Which of the following best explains why speciation can occur in this situation?
a)
Predators on the main island can easily migrate to follow the populations to the other islands.
b)
The physical separation of the islands from the main island limits gene flow and interbreeding between the populations.
c)
Lack of disease on the other island enables the populations to grow and change without limits.
d)
The climatic conditions of the islands allow the populations to breed all year long and produce several generations.
9.
Which organisms are most likely to survive?
a)
the best adapted
b)
the fastest
c)
the strongest
d)
the most domesticated (tamed)
10.
What mechanism of evolution is this?
a)
Natural Selection
b)
Genetic Flow
c)
Mutation
d)
Sexual Selection
11.
Mutations within a DNA sequence are
a)
natural processes that produce genetic diversity
b)
natural processes that always affect the phenotype
c)
unnatural processes that always affect the phenotype
d)
unnatural processes that are harmful to genetic diversity
12.
Why do frogs and other organism reproduce so many eggs or offspring?
a)
so that their babies can have friends to play with
b)
the more offspring the more likely the offspring will to increase chances of survival
c)
so that they can nurture their young over a long period of time
d)
the more offspring the less competition
13.
In San Diego, California sea lions may mate during different times, however, their embryos stay suspended and do not begin developing until June. Pups are born the following year in May. Why does this occur?
a)
So the mother can continue to breed with many male sea lions in many areas
b)
Because the female sea lions all have different gestation (pregnancy) periods
c)
So the females can give birth to more pups every year
d)
Because pups can be born when the weather is warmer, food is plentiful, and many mothers can protect the pups
14.
Which of the following is an example of natural selection?
a)
Bald Eagles are hunted until near extinction, population recovers.
b)
Small group of iguanas floats to an island, starts a new population.
c)
Red fox pups are more likely to survive in a snowy environment if they are born white.
d)
Farmer chooses seeds from largest apples to plant next year. This results in larger apples from year to year.
15.
Group of organisms all of the same species, living in the same place at the same time.
a)
gene pool
b)
population
c)
species
d)
evolution
16.
All of the genetic information found in a population.
a)
population
b)
genetic drift
c)
evolution
d)
gene pool
17.
What is the most helpful thing when looking at a fossil record?
a)
size of the fossil
b)
color of the fossil
c)
surface area of the rocks found around the fossil
d)
depths in which the fossils are found
18.
If a species migrate which of the following can be true?
a)
With different environments, difference in appearance would form.
b)
They would evolve different to prevent overpopulation.
c)
They would evolve differently because their ancestors avoid competition.
d)
Their ancestors didn't possess the ability to evolve, so the species wouldn't evolve.
19.
What do the similarities of the structures suggest?
a)
a common ancestor
b)
grow at different rates
c)
evolved slowly
d)
lived a long time
20.
When lions prey on a herd of antelope some antelopes are killed and same escape. Which part of Darwin's concept of natural selection might be used to describe this situation?
a)
acquired characteristics
b)
reproductive isolation
c)
survival of the fittest
d)
descent with modification
21.
Two organisms that are closely related would have ___.
a)
exactly the same DNA sequences
b)
completely different DNA sequences
c)
no proteins in common
d)
very similar DNA sequences
22.
Genetic variation can arise from a random change in the DNA of a gene. This change is called a(n) ___.
a)
mutation
b)
gene pool
c)
allele
d)
gene flow
23.
A scientist hypothesizes that if a mutation produces one bacterial cell with antibiotic resistance, after several generations a large percentage of the cells in the population will have the resistance. Which of the following best describes the mechanism by which this series of events could occur?
a)
The resistant cell uses its superior genotype to produce more offspring than other cells produce.
b)
Proteins in the resistant cell's DNA are tougher and therefore survive longer.
c)
The resistant cell survives longer and reproduces more successfully than other cells.
d)
The resistant cell's DNA aggressively crosses over to other cells.
24.
. In any given population of organisms, there are differences between the organisms. Why is it ADVANTAGEOUS for a population to have variation?
a)
Variation in a population provides males with a wider selection of females when mating.
b)
Variation means the organisms are better able to hide in different areas of their habitat
c)
Variation makes it easier for organisms to recognize members of their own families.
d)
Variation increases the likelihood that at least some individuals will survive if there is a change in the environment
25.
What did Charles Darwin observe in finch populations of the Galapagos Islands off the coast of South America?
a)
different species on different islands
b)
all species on one of the islands
c)
identical species on all the islands
d)
the same species as North America
26.
Mutations are a change in what?
a)
DNA
b)
tRNA
c)
genotype
d)
phenotype
27.
What percentage of all species that ever lived are estimate to be extinct? _____%
a)
10%
b)
80%
c)
50%
d)
99%
28.
All living things ____ to make more living things
a)
reproduce
b)
develop
c)
grow
d)
adapt
29.
A place in an ecosystem where a population lives is called a _________.
a)
community
b)
habitat
c)
evolution
d)
limiting factor
30.
Populations with high diversity have _________.
a)
very few traits
b)
high number of different traits
c)
difficulty surviving
d)
very few living individuals
31.
Who came up with the theory of evolution?
a)
Charles Darwin
b)
Albert Einstein
c)
Steven Hawking
d)
Mr. Fletcher
32.
What causes living things to change over time?
a)
cloning
b)
fossil evidence
c)
natural disasters
d)
changes in the environment
33.
Scientists can tell that ____________ by studying fossils.
a)
living things have not changed over time
b)
living things have changed over time
c)
what living things will look like in the future
d)
what living things will eat in the future
34.
Living things who posses favorable traits will most likely _____________.
a)
die young
b)
go extinct
c)
pass those traits to offspring
d)
remove the trait from the gene pool
35.
Which species’ DNA is most similar to the DNA of the toothed whale?
a)
Hippopotamus
b)
Baleen Whale
c)
Grazing Mammals
d)
Camels
36.
The environment around Manchester, England, changed during the Industrial Revolution. How did this change affect peppered moths living in the area?
a)
Natural selection favored moths with dark wings because predators could not see them on the soot-colored trees.
b)
Natural selection favored moths with white wings that were easy for predators to see.
c)
Natural selection favored moths with white wings because predators could not see them on the soot-colored trees.
d)
Natural selection caused moths with white wings to become extinct.
37.
When an organism completely dies out, it is called.....
a)
Adaption
b)
Extinction
c)
Fossilization
d)
Mutation
38.
Remains of ancient organisms are called
a)
Extinctions
b)
Fossils
c)
Mutations
d)
Variations
39.
A well-tested concept that explains a wide range of observations is called a(an):
a)
hypothesis
b)
experiment
c)
cause and effect
d)
scientific theory
40.
The white feathers of a snowy owl allow it to blend in with its environment during the winter months (snow). This is an example of ________________
a)
Species
b)
Environmental Change
c)
Adaptation
d)
Variation
41.
What increases genetic variation when animals move from one population to another
a)
genetic drift
b)
sexual selection
c)
bottleneck effect
d)
gene flow
42.
Mutations are important because they bring about
a)
death of the organism in which they develop
b)
genetic variation needed for a population to evolve
c)
benefits for the individual, not for the population
d)
Hardey-Weinberg equilibrium within a population
43.
Similar DNA sequences between organisms illustrate
a)
natural selection
b)
common ancestry
c)
population bottlenecks
44.
Surviving and reproducing show that an organism
a)
is adapting
b)
is not adapting
c)
is forming fossils
d)
is not reproducing
45.
This makes an organism more suited to its enviornment
a)
species
b)
lifespan
c)
adaptation
d)
mutation
46.
What is one reason that strawberries are surviving in the winter season?
a)
they have larger leaves
b)
they have genetic variations allowing them to be resistant to cold
c)
they reproduce more
d)
the color is dark
47.
What would happen if the Giraffes never evolve?
a)
they would survive
b)
They would thrive
c)
They would become extinct
d)
They will find another source of food
48.
The ability of an organism to survive and reproduce in its specific environment
a)
diversity.
b)
evolution
c)
adaptation
d)
fitness
49.
What is speciation?
a)
combining of tow species to form one with different traits
b)
isolation that affects mating behaviors
c)
timing of mating that prevents normal sexual selection
d)
divergence of two or more species from an existing one
50.
Extinction can occur because of which of the following?
a)
All can be causes of extinction.
b)
Increased competition with other species
c)
New predators within the environment
d)
Loss of habitat and/or catastrophes
100 %
