ECOLOGIST

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who wants to be an
who wants to be an
ECOLOGIST
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Question 1
What is the correct order of the levels of
organization in ecology from most to least
inclusive?
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D ? B ? C ? A
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A population
B ecosystem
C community
D biosphere
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Question 2
Which level of biological organization includes
abiotic factors?
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B ecosystem
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A species
B ecosystem
C community
D population
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Question 3
All of Earths ecosystems makes up the __________.
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C biosphere
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A hydrosphere
B stratosphere
C biosphere
D lithosphere
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Question 4
What would ground-level plants most likely
compete for in a dense forest?
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A sunlight
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A sunlight
B water
C oxygen
D carbon dioxide
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Question 5
A major type of ecosystem characterized by a
particular climate flora is called a ______.
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D biome
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A biosphere
B landscape
C community
D biome
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Question 6
In which biome would you find the most large
grazing animals?
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B grassland
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A desert
B grassland
C tropical forest
D tundra
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Question 7
Which of the following is abiotic?
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C light
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A cows
B bacteria
C light
D people
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Question 8
A group of individuals of the same species
occupying the same area is called a ______.
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A population
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A population
B species
C community
D subspecies
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Question 9
There are 30 cows per acre on a farm. This is a
measure of the cow populations ________.
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B density
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A dispersion
B density
C range
D richness
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Question 10
Birds sitting on every fence post for 3 miles is
an example of _______ distribution.
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D uniform
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A random
B clumped
C aggregate
D uniform
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Question 11
If 10 minnows are introduced to a predator-free
pond they double their population size every
generation, how many minnows will there be by
generation 5?
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C 160
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A 20
B 80
C 160
D 320
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Question 12
The maximum number of individuals a habitat can
support is called the _________.
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D carrying capacity
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A reproductive potential
B max. rate of growth
C community size
D carrying capacity
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Question 13
What will happen to a population of 2000 in a
habitat with a carrying capacity of 1000 for that
species?
A it will ? in size
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A it will ? in size
B it will ? in size
C mortality will ?
D natality will ?
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Question 14
If birth rate is 40 per 1000 death rate is 30
per 1000, how will the population change each
year?
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B it will ? by 1
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A it will ? by 70
B it will ? by 1
C it will ? by 10
D it will ? by 5
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Question 15
What happens to the birth rate death rate as
population size increases in the logistic growth
model?
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A br ? and/or dr ?
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A br ? /or dr ?
B br dr ?
C br dr ?
D no ? in br or dr
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Question 16
Growth of the human population over the past 2000
years most closely resembles which type of
population growth?
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C exponential
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A logistic
B linear
C exponential
D sigmoid
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Question 17
A group of potentially interacting populations of
different species is called a _________.
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D community
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A symbiosis
B niche
C trophic level
D community
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Question 18
The number of different species in a community is
called the ______.
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B species richness
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A species diversity
B species richness
C species index
D relative abundance
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Question 19
Two organisms that eat the same prey can be
described as having which type of relationship?
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D competitive
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A mutualistic
B commensalistic
C parasitic
D competitive
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Question 20
What are the feeding relationships within a
community called?
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A trophic structure
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A trophic structure
B species richness
C niche
D symbiosis
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Question 21
Which pair of organisms are not involved in a
predator-prey relationship?
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B caterpillar leaf
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A hawk snake
B caterpillar leaf
C squirrel acorn
D cat mouse
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Question 22
What type of relationship is exhibited by mammals
intestinal bacteria?
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A mutualism
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A mutualism
B commensalism
C parasitism
D ammensalism
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Question 23
A prokaryote that causes tooth decay in humans
has what kind of relationship with humans?
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C parasitic
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A mutualistic
B commensalistic
C parasitic
D competitive
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Question 24
What kind of relationship do birds have with
cattle that stir up insects for the birds to eat
as they walk?
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B commensalistic
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A mutualistic
B commensalistic
C parasitic
D predation
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Question 25
After which of the following events would primary
succession occur?
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A volcanic eruption
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A volcanic eruption
B fire
C flood
D abandoned farm
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Question 26
Which of the following terms could be used to
describe a tree?
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C producer
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A consumer
B heterotroph
C producer
D detritivore
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Question 27
What word best describes the grasshopper in the
following food chain? grass ? grasshopper ?
sparrow ? hawk
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B primary consumer
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A producer
B primary consumer
C secondary consumer
D tertiary consumer
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Question 28
Which of the following are detritivores?
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D fungi
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A spiders
B cacti
C birds
D fungi
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Question 29
How does the movement of energy matter through
an ecosystem differ?
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C energy flows
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A energy cycles
B matter flows
C energy flows
D matter doesnt move
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Question 30
Which organisms use the energy source that powers
ecosystems to make organic compounds?
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A producers
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A producers
B herbivores
C carnivores
D consumers
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Question 31
About how much of the energy in producers will be
available to secondary consumers?
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D 1
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A 50
B 10
C 90
D 1
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Question 32
Which of the following is not cycled between
organic matter abiotic reservoirs?
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B energy
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A water
B energy
C carbon
D phosphorus
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Question 33
How is carbon dioxide removed from the atmosphere?
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A photosynthesis
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A photosynthesis
B cell respiration
C nitrification
D combustion
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Question 34
What process involves the evaporation of water
from plants into the atmosphere?
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D transpiration
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A condensation
B assimilation
C denitrification
D transpiration
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Question 35
What form of nitrogen can plants assimilate?
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C NO3
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A NH3
B NH4
C NO3
D N2
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