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BIOL-1106 - Term Test 2 Flashcards | StudBud
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BIOL-1106 - Term Test 2
BIOL-1106 - Term Test 2
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Answers
1
Which of the following depicts a population with a negative growth rate?
C
A
D
B
2
An ecosystem is a collection of populations in a given area which interact with one another.
False
True
3
What two parameters are most influential in dictating an area's climate?
average temperature and average altitude
average temperature and average cloud coverage
average precipitation and average temperature
average precipitation and average cloud coverage
4
Which organisms are the first to colonize an area during primary succession?
lichens and mosses
shrubs
trees
ferns
5
What population growth pattern do lynx exhibit?
irruptive
stable
cyclical
irregular
6
Which of the following is always a negative interaction for both individuals involved?
competition
mutualism
parasitism
commensalism
7
Species diversity is a combined measurement of which two other community parameters?
species evenness and species distribution
species richness and species distribution
species richness and species evenness
species richness and niche availability
8
Dung beetles are an example of what type of species?
generalist species
indicator species
invasive species
keystone species
9
Islands which are ______ & ______ will have a greater species diversity than islands which are ______ & _______
large and close to mainland vs. small and far from mainland
small and far from mainland vs. large and close to mainland
large rather than small, distance to mainland is irrelevant
small and close to mainland vs. large and far from mainland
10
Living organisms which are found dwelling on the substrate of a lake would be classified as:
benthos
nekton
plankton
detritus
11
What two factors have the greatest effect on death rate?
infant mortality and maternal mortality
life expectancy and maternal mortality
infant mortality and life expectancy
life expectancy and economic status
12
What type of forest management practice maintains a stand of trees with one species, all of the same relative age?
uneven-age
uniform
equal-age
even-age
13
One of the ways humans are disrupting natural populations is by removing large numbers of herbivores.
True
False
14
Which of the following is NOT one of the major influences affecting average temperatures and precipitation rates?
latitude
ocean currents
altitude
jet streams
15
What percentage of the world's forests are old-growth forests?
36%
57%
45%
17%
16
What is the most influential factor determining biodiversity in aquatic life zones?
dissolved oxygen content
water depth
salinity
water temperature
17
Biomes with enough precipitation to support drought resistant plants but not enough precipitation to support trees are:
mountains
grasslands
deserts
forests
18
What is existence value?
value awarded to an ecosystem because it is useful for resource acquisition
value awarded to an ecosystem because it is important to biodiversity
value awarded to an ecosystem because it is useful for recreation
value awarded to an ecosystem because it is aesthetically pleasing
19
Why is the destruction of wetlands so devastating to biodiversity and surrounding habitats?
wetlands act as important resting spots for migratory species
wetlands act as natural floodways reducing flooding in nearby habitats
wetlands act as natural detoxification sites and remove pollutants
all of the above
20
What is a population's intrinsic rate of increase?
a population's minimum rate of growth with unlimited resources
a population's average growth rate with finite resources
a population's realized growth rate with finite resources
a population's maximum rate of growth with unlimited resources
21
What greenhouse gas is the main contributing factor to ocean acidification?
nitric oxide
carbon dioxide
carbon monoxide
ozone
22
What biome is characterized by cold temperatures, high winds, & foliage mainly consisting of shrubs, grasses, and moss?
temperate forest
polar desert
temperate grassland
polar grassland
23
Human fertility rates exhibit what broad pattern?
fertility rates are even across countries with high or low economic growth
low fertility rates in less industrialized countries
low fertility rates in highly industrialized countries
high fertility rates in countries with high economic growth
24
In the following image, what does the fish line represent?
a population with minimal loss at low ages and high loss at high ages
a population with constant loss throughout the life span of the species
a population with high loss at low ages and minimal loss at high ages
25
Where is most of the world's water found?
in oceans
in lakes
in ice caps and glaciers
in estuaries
26
In what zone of the ocean would we expect to find most nocturnal hunters?
hadal zone
bathyal zone
abyssal zone
euphotic zone
27
Which of the following parameters would NOT support coral reef growth and maintenance?
clear water
close to shore
deep water
warm water temperatures
28
Secondary succession begins with a base layer of small annual plants
False
True
29
Roughly how long does it take for an old-growth forest to regrow to its former carbon storage capacity?
100 years
500 years
200 years
50 years
30
How are ecological stability and complexity related?
communities with low complexity can never be stable
communities with high complexity are more stable
communities with high complexity are less stable
communities with low complexity are more stable
