SCI 210 Week 3 Quiz | Assignment Help | Carrington College (US)
- carrington college / SCI 210
- 23 Sep 2019
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SCI 210 Week 3 Quiz | Assignment Help | Carrington College (US)
Question 1
(SLO 5) Interbreeding, reproducing a group of
individuals of a single species is called a(n)
o
unit.
o
family.
o
community.
o
ecosystem.
o
population.
Question 2
(SLO 5) The number of individuals of a species
in a given unit area (e.g., the number of rabbits per hectare) is called
o
population density.
o
carrying capacity.
o
replacement level.
o
critical number.
o
population equilibrium.
Question 3
(SLO 5) A species that has an essential role
in maintaining ecosystem structure is called a(n)
o
keystone species.
o
critical species.
o
endangered species.
o
predator.
o
threatened species.
Question 4
(SLO 5) Which of the following best describes
a country's biological wealth?
o
The country's animal life
o
The country's plant life
o
The endangered species of plants and
animals of that country
o
The species recognized in the Red List
as endangered
o
The animal and plant life for a specific
country
(SLO 5) The greatest loss of biodiversity is
caused by
o
pollution.
o
habitat alteration.
o
hunting.
o
competition with introduced species.
o
overgrazing by domestic animals.
(SLO 5) Which of the following describes the
role of wild plants in the U.S. pharmaceutical industry?
o
All modern pharmaceuticals are produced
synthetically.
o
Only non-prescription herbal remedies
are still derived from plants.
o
Plants are only used in the production
of traditional herbal remedies.
o
Wild plants are still a major source of
prescription and non-prescription drugs.
Question 7
(SLO 5) The idea that a species has value for
its utility to humans is called
o
intrinsic value.
o
instrumental value.
o
fragmented value.
o
valueless.
o
aesthetic.
Question 8
(SLO 6) A population with a stable size (at
equilibrium) is one in which
o
death rate is less than the birth rate.
o
death rate is the same as the birth rate on
average.
o
death rate exceeds the birth rate.
o
birth rate equals recruitment.
o
there are no deaths.
Question 9
(SLO 6) Demography is
o
the study of population.
o
the science concerned with mapping.
o
an economic approach to resource
consumption.
o
a branch of chemistry concerned with
water quality.
o
the study of economics.
Question 10
(SLO 6) Crude birth and death rates enable one
to compare
o
the natural increase or decrease of
different populations.
o
relative rates of immigration and
emigration.
o
the proportions of fertile women of
different populations.
o
the causes of deaths of a population.
o
age profiles of different populations.
Question 11
(SLO 6) The crude death rate for a given
country is a statistic of
o
total number of deaths per year.
o
number of deaths per 1,000 people per
year.
o
total numbers of deaths per year
regardless of cause.
o
accidental deaths per year.
o
infant mortality.
Question 12
(SLO 5) What is an
exotic species and an invasive species? Give examples of each and their impact
on native species.
Question 13
(SLO 5) Describe two effects of humans that
are believed to be accelerating the species extinction.
(SLO 6) Would you be willing to reduce by half
your standard of living if a family in a developing country reduced by half its
family size? Explain your position.
USA 
India