Biology 1 - The Life Sciences » 2019 » Module 7 Exam
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Question #1
A population is a
A.
sum of all individuals of a species in all locations
B.
group of individuals of several interacting species that interact in multiple ecosystems
C.
group of individuals of a single species that live and interact in one area
D.
group of individuals of several interacting species that live in one area
Question #2
Taylor wants to know how herbivores of different sizes affect the types of plants found in a certain area. What sort of ecologist is Taylor?
A.
ecosystem ecologist
B.
biosphere ecologist
C.
community ecologist
D.
population ecologist
Question #3
Which of the following would a clumped population dispersion pattern?
A.
oak trees planted on city streets
B.
a field of wildflowers
C.
a pod of 40 migrating whales
D.
earthworms in the soil of a garden
Question #4
Exponential growth is sometimes referred to as the 'J' curve.
A.
TRUE
B.
FALSE
Question #5
Which of the following models of population growth includes the concept of a carrying capacity?
A.
Logistic growth
B.
Geometric growth
C.
Arithmetic growth
D.
Exponential growth
Question #6
Which of the following is an example of a density-independent factor?
A.
a specialist searching for a particular type of plant that is its food source
B.
cold weather causing seedlings in a field to freeze
C.
a disease on wheat plants in a wheat field
D.
a plant parasite, such as mistletoe
Question #7
A Type I survivorship curve, with higher death rates at older ages, is typical of
A.
weedy plants, like dandelions
B.
birds
C.
large mammals (including humans!)
D.
organisms such as flies and toads
Question #8
r-selected species tend to _________
A.
be large
B.
provide lots of parental care
C.
produce large young
D.
be opportunists
Question #9
K-selected species (aka equilibrium species) provide very much parental care for their young.
A.
FALSE
B.
TRUE
Question #10
A pyramidal age-structure diagram is the result of high juvenile mortality and high reproductive rates.
A.
FALSE
B.
TRUE
Question #11
The current world human population size is about _________
A.
2 billion
B.
12 billion
C.
7 billion
D.
100 billion
Question #12
When one competitor species eliminates another competitor from the habitat, it is called ___________
A.
extinction
B.
a loss of a keystone species
C.
niche partitioning
D.
competitive exclusion
Question #13
Niche partitioning (or resource partitioning) results in lower levels of competition over time.
A.
TRUE
B.
FALSE
Question #14
Those species that are central to the stability of a community are called ________
A.
r-selected species
B.
dominant species
C.
herbivores
D.
keystone species
Question #15
Species evenness is a measure of the total number of species occupying a habitat
A.
TRUE
B.
FALSE
Question #16
Camouflage is a strategy that can be used by ___________
A.
predator species
B.
both predator and prey
C.
prey species
D.
neither predator nor prey
Question #17
Which event would represent primary succession?
A.
Grasses growing on a new volcanic island
B.
Letting your yard grow wild
C.
Weeds growing through cracks in a sidewalk
D.
An abandoned farmer's field
Question #18
Which factors define the nature and distribution of earth's biomes?
A.
Temperature
B.
Both precipitation and temperature
C.
Species diversity
D.
Plant abundance
Question #19
Approximately what percentage of energy is available in each successive trophic level in a typical energy pyramid?
A.
10%
B.
0.10%
C.
100%
D.
1%
Question #20
In an ecological energy pyramid, an animal that eats an animal that eats an animal that eats plants would be called a ________.
A.
secondary consumer
B.
primary consumer
C.
tertiary consumer
D.
quarternary consumer
Question #21
Which of the following trophic levels has the lowest energy content and biomass?
A.
producers
B.
top carnivores
C.
detritivores
D.
primary consumers
Question #22
Which level of ecological organization includes both the living and nonliving components of a functional system?,,
A.
Organism
B.
Population
C.
Ecosystem
D.
Community
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