Bio 2010 - Microbiology » Summer 2021 » Unit 1 Practice Exam
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Question #1
Nearly all developed countries in the world are beginning a demographic transition in the 21st century.
A.
TRUE
B.
FALSE
Question #2
The carrying capacity of a given geographic region for a single population can change over time.
A.
FALSE
B.
TRUE
Question #3
The average American uses as many resources in one day as 370 Ethiopians.
A.
FALSE
B.
TRUE
Question #4
Global human population growth rates have declined since the 1960s by about 1%.
A.
TRUE
B.
FALSE
Question #5
Human populations don't generally follow the "boom and bust" cycle of some animal populations.
A.
TRUE
B.
FALSE
Question #6
A woman with a college education is more likely to have a large family than a woman with an eighth-grade education.
A.
FALSE
B.
TRUE
Question #7
Fossil fuels form from the unconsumed ________ of dead organisms.
A.
carbohydrates
B.
proteins
Question #8
Exponential growth, when graphed, appears as a(n)
A.
"J" curve.
B.
"S" curve.
Question #9
All the bacteria of the species E. coli that live inside a cow's intestine represent a(n)
A.
growth rate
B.
population
Question #10
According to scientists, how do the levels of carbon dioxide in the atmosphere today compare to the past 400,000 years?
A.
No more atmospheric carbon dioxide today
B.
There's more atmospheric carbon dioxide today.
Question #11
The process by which carbon dioxide and water are converted to glucose and oxygen is called
A.
photosynthesis.
B.
osmosis
Question #12
The global human population increases by ________ people per day.
A.
250,000
B.
300,000
Question #13
As the Industrial Revolution took place, there was a decrease in infant mortality, resulting in
A.
a decrease in the population growth rate.
B.
an increase in the population growth rate.
C.
an increase in the population death rate.
Question #14
How is global warming likely to affect an animal species that has narrow temperature requirements? Global warming is likely to
A.
cause the extinction of the species.
B.
cause the decrease of mortality of the species.
Question #15
A(n) ________ could exert the most influence to speed the reduction of greenhouse gas emissions.
A.
scientist
B.
policy maker
Question #16
Almost all scientists believe that the global warming observed over the past 100 years has been caused by elevated levels of gases in the atmosphere. Which of the following gases is primarily responsible for this problem?
A.
helium
B.
cardon dioxide
Question #17
Where does most of the carbon dioxide released by human activities come from?
A.
burning fossil fuels
B.
smoke belchers
Question #18
Growth rates appear to be declining in many human populations because
A.
families are choosing to have fewer children.
B.
couples decided not to have a baby
Question #19
When a population of spotted salamanders in an area of vernal pools remains stable for many years and the population has stabilized because of resource limits, then
A.
carrying capacity has been reached.
B.
families are choosing to have fewer children.
Question #20
The principle of a carrying capacity corresponds to a pattern of population growth that's
A.
mortality
B.
logistics
Question #21
If everyone on the planet used resources and lived the average lifestyle of an American, then
A.
we would need multiple Earths for this to be possible.
B.
there will be World War III
Question #22
Over the past two centuries, the growth of human population has
A.
increased exponentially.
B.
increased momentarily
Question #23
The term "abiotic factors" refers to:
A.
nuclear and chemical factors in the environment
B.
physical and chemical factors in the environment
Question #24
The process of photosynthesis transforms solar energy into ________ energy.
A.
chemical
B.
nuclear
Question #25
Human populations may surpass the carrying capacity of their environment due to
A.
temporary reliance on stored or nonrenewable resources.
B.
increased population growth rate
Question #26
Which of these is a fossil fuel?
A.
coal
B.
ore
Question #27
On Earth, ________ is/are the largest reservoir of carbon dioxide and heat.
A.
the oceans
B.
desert
Question #28
Which of these human activities has directly contributed to global warming?
A.
smoke from factories
B.
burning of coal
Question #29
The plants that made up fossil fuels lived around ________ years ago.
A.
500,000,000
B.
300,000,000
Question #30
Which of the following projects would be conducted by an ecologist?
A.
a study of squirrels and their interactions with other animals
B.
a study of land and water forms and their interactions with other animals
Question #31
How would Earth change if the greenhouse effect didn't exist at all?
A.
Without the greenhouse effect, Earth would radiate all its heat into space.
B.
Without the greenhouse effect, Earth would radiate all its heat into oceans.
Question #32
A decrease in the amount of greenhouse gases in Earth's atmosphere would result in
A.
cooler average global temperatures.
B.
hotter average global temperatures.
Question #33
Most of the energy contained in one trophic level is "lost" when it gets to the next trophic level. The lost energy takes the form of
A.
kinetic energy, in the motion of consumers.
B.
metabolic heat.
Question #34
Which of the following is represented by a completely "columnar" population pyramid?
A.
equal proportions of young, middle-aged, and elderly
B.
proportionally more middle-aged and elderly than young
Question #35
Which of the following is a population-limiting, density-dependent factor?
A.
a drought that limits food availability
B.
the rapid spread of tuberculosis in heavily populated areas
Question #36
Which of the following would most likely result in a population represented by an "inverted triangular" population pyramid, which is heaviest at the top?
A.
a population decline
B.
a population explotion
Question #37
A.
hydrogen fuel cell
B.
natural gas
Question #38
An owl eating a seed-eating mouse is an example of a
A.
primary consumer.
B.
secondary consumer.
Question #39
The carrying capacity of a population is represented as
A.
J
B.
K
Question #40
A food chain in the open ocean, from the base up, would be
A.
phytoplankton, zooplankton, sand lance, humpback.
B.
plankton, phytoplankton, zooplankton, landplankton
Question #41
Which of the following is at the "bottom" of a trophic pyramid?
A.
consumers
B.
producers
Question #42
What relationship has been shown by the data from Antarctic ice cores?
A.
a positive correlation between carbon dioxide concentration and ice core temperature
B.
a negative correlation between carbon dioxide concentration and ice core temperature
Question #43
How do scientists "know" the atmospheric levels of carbon dioxide that existed on Earth hundreds or thousands of years ago?
A.
They estimate it from the relative numbers of carbon-based life forms that existed over time.
B.
They measure it from bubbles of gas trapped in Antarctic ice.
Question #44
The steep and sudden decline in a population size as birth rates plummet and death rates soar is called
A.
a population equilibrium
B.
a population crash.
Question #45
Which of the following is a density-dependent factor?
A.
increase in water condensation
B.
increase in waste production
Question #46
A.
The greenhouse effect is a dangerous phenomenon that should be stopped as soon as possible.
B.
Most life on Earth relies upon the hospitable temperatures resulting from the greenhouse effect.
Question #47
Developed countries are characterized by
A.
industrial economies and high individual incomes.
B.
industrial economies and low individual incomes.
Question #48
Which of the following is a true statement about carbon and the carbon cycle?
A.
Carbon is recycled among plants, animals, and people
B.
Carbon is recycled among plants, animals, water, soil, and the atmosphere.
Question #49
All individuals of all species living within an area of interest represent a(n)
A.
community
B.
population
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