Who Wants to
Be a
Millionaire?
Template by Bill Arcuri, WCSD
Biology
Benchmark
rd
3 Quarter
Part III
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at right to proceed to the question
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Fifty - Fifty
50/50
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leaving you with one wrong
answer plus the correct one.
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Question #1... The series of steps in
which a large fish eats a small fish
that has eaten algae is a :
50/50
A food
A
chain
Pyramid of
C
numbers
B A food web
D
biosphere
Template by Bill Arcuri, WCSD
Question #2... When the ecosystem is
limited by a single nutrient that is either
scarce or cycles very slowly, this
substance is called a (an)
50/50
A
nitrogen
compound
biogeochemical
cycle
B
C
organic
phosphate
D limiting nutrient
Template by Bill Arcuri, WCSD
Question #3... Bees visit flowering plants, collecting nectar to
make honey. While collecting nectar, the bees help spread
the plants' pollen, helping the plants reproduce.
Which of the following best describes how a decrease in bees
may affect the stability of organisms in an environment?
50/50
A
Populations of producers would
increase, causing populations of
nearly all organisms to increase.
C
Populations of producers would
decrease, causing populations
of nearly all organisms to
decrease..
B
D
Populations of primary
consumers would decrease,
causing populations of
secondary consumers to
increase.
Populations of primary consumers
would increase, causing
populations of secondary
consumers to decrease.
Template by Bill Arcuri, WCSD
Question #4…: All of the following
are density-dependent factors
that affect population growth,
except:
50/50
A
C
predation
natural disaster
B
competition
D
parasitism
Template by Bill Arcuri, WCSD
Question #5... All of life on earth
exists in a region known as:
50/50
The
biosphere
A
A biome
B
C
ecology
D An ecosystem
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Question #6…How much of the sun’s energy
would remain in level A of the energy
pyramid?
50/50
A
0.01
B
C
1%
D
0.1%
10%
Template by Bill Arcuri, WCSD
Question #7... How much energy would
remain in level C of the pyramid?
50/50
A
100%
B
C
0.1%
D
10%
1%
Template by Bill Arcuri, WCSD
Question #8... Which
of the following
statements is best
supported by the
classification in this
figure?
50/50
A
The Utah prairie dog was
the ancester of the
Gunnison's prairie dog.
C
The White-tailed prairie dog
evolved from the the
evolved from the Black
-tailed prairie dog.
B
D
The Mexican prairie dog and
the Utah prairie dog share a
common ancester..
The Mexican prairie dog is
the closest relative of the
White tailed prairie
Template by Bill Arcuri, WCSD
Question #9... A tree frog population lives in the canopy of
a tropical rain forest.In this tree frog population, a
mutation occurs that results in a new allele for skin
coloration causing stripes on their legs.
Which of the following factors has the greatest effect on
whether leg stripes will become more common in the tree
frog population?
50/50
A
If the reproduction rate of
the tree frog population
remains constant over
B
If the new allele for stripes
is dominant or recessive in
the tree frog
population.
D
If the new allele for stripes
increases the survival of
the tree frogs in their
environment.
time.
C
If enough food and water is
available in the rain forest
canopy for the tree frog
population.
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Question #10 : Which of the
following best describes the
influence of emigration on the
size of a population?
50/50
A
C
In general, as emigration from
an area increases, the
population of the area decrease
In general, as emigration from
an area decreases, the
population of the
area decreases.
B
In general, as emigration from
an area increases, the
population of the
area increases.
In general, as emigration from
D
an area decreases, the
population of the
area increases.
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Question #11... The graphic below shows the population
pyramid for Ethiopia for 2010.
What is the most likely reason that younger people
outnumber older people?
50/50
A
The immigration rate
is greater than the
emigration rate
C
The emigration rate is
greater than the
immigration rate
B
D
The birth rate has
been increasing for
many years
The death rate has
been decreasing for
many years
Template by Bill Arcuri, WCSD
Question #12... How do
nitrogen-fixing bacteria help
cycle nitrogen through
ecosytems
?
50/50
A
C
They release nitrogen into
the atmosphere when they
replicate their
DNA.
They convert ammonia
from animal feces that
plants can plants can uses
B
They convert sunlight into
chemical energy which is
then stored in the
nitrogen.
D
They capture nitrogen from
the atmosphere and convert
it into forms
that plants can useTemplate
. by Bill Arcuri, WCSD
Question #13... On a small isolated island,
there is a single species of seed eating birds.
Individual birds are able to eat seeds that are
within 2mm (larger or smaller) of their beak
depth. The distribution of individuals is
shown.
A long drought caused the plant species that
produces seeds between 3-9 mm in size to
go extinct. What does the theory of natural
selection predict will happen to to the
population of seed-eating birds over time?
50/50
A
C
It will diverge into two
species: one that eats small
seeds and one that
eats large seeds.
It will permanently shrink to
approximately 25% of its
current size.
B
It will go extinct because
there aren’t enough seeds
to support all individuals.
D
It will adapt and the birds
that ate the medium sized
seeds will learn toeat fish,
insects, or other animals.
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Question #14... This graph
shows a population of pigeons
living in a neighborhood over a
ten year period.
Which of the following
statements could account for
the change in population seen
between years 7 and 8?
50/50
A
The neighborhood reached
its carrying capacity for the
pigeon population.
B
The death rate of the
pigeons exceeded the birth
rate.
C
The migration rate of the
pigeons decreased.
D
The birth rate of the
pigeons increased.
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Question #15... Which of the following
best describes the relationship between
carrying capacity and death rates?
50/50
A
C
As population size
approaches the carrying
capacity, death rates begin
to increase.
As population size
approaches the carrying
capacity, death rates
approach zero.
B
D
As population size
approaches the carrying
capacity, death rates remain
unchanged,
As population size
approaches the carrying
capacity, death rates begin
to
decrease.
Template by Bill Arcuri, WCSD