WorksheetsPopulation Ecology
Total questions: 20
Worksheet time: 10mins
Name
Class
Date
1.
Rabbits and deer eat lettuce leaves from a garden.
What ecological interaction describes the relationship between rabbits and deer?
What ecological interaction describes the relationship between rabbits and deer?
a)
Mutualism
b)
Competition
c)
Commensalism
d)
Predation
2.
Which of the following best defines the ecological interaction between flowering plants and the bees?
a)
Parasitism
b)
Mutualism
c)
Predation
d)
Commensalism
3.
What type of ecological interaction does the tapeworm have with its host?
a)
Commensalism
b)
Mutualism
c)
Predation
d)
Parasitism
4.
What type of ecological interaction exists between whales and the barnacles?
a)
Commensalism
b)
Predation
c)
Parasitism
d)
Mutualism
5.
Whic statement best describes the relationship between species A and B?
a)
Species A is the prey of Species B
b)
Species A is a parasite of Species B
c)
Species A is a consumer and B is a producer
d)
Species A and B has a mutualistic relationship
6.
Species diversity is dependent on:
a)
species
abundance
b)
species
richness
c)
species
dispersion
d)
species abundance and species richness
7.
Resource partitioning is best described by which of the following statements?
a)
Competitive exclusion results in the success of the superior species.
b)
Slight variation in niche allows closely related species to coexist.
c)
Two species can coevolve and share the same niche.
d)
Species diversity is maintained by switching between prey species.
8.
The traditional concept of succession includes the idea of an equilibrium state called a climax community. Ecologists now think there may be no such thing as a climax community because:
a)
Disturbance is ongoing in ecosystems.
b)
All organisms eventually die.
c)
Species diversity generally increases.
d)
Extinction increases in stable environments.
9.
An insect that has evolved to closely resemble a twig will probably be able to avoid:
a)
Parasitism
b)
Symbiosis
c)
Predation
d)
Competition
10.
To be certain that two species had coevolved, one would ideally have to establish that:
a)
The two species are adapted to a common set of environmental conditions.
b)
Each species has an impact on the population density of the other species.
c)
The local extinction of one species results in the extinction of the other species.
d)
Each species has adaptations that specifically followed evolutionary change in the other.
11.
Which of the following characteristics would be a successful evolution for both a predator or a prey organism?
a)
Camouflage
b)
Heat-sensing ability
c)
3-D vision
d)
echolocation
12.
According to the competitive exclusion principle, two species cannot continue to occupy the same:
a)
Habitat
b)
Niche
c)
Territory
d)
Range
13.
The relationship between termites and the bacteria in their guts
a)
Parasitism
b)
Mutualism
c)
Predation
d)
Commensalism
14.
The relationship between great white sharks and seals
a)
Parasitism
b)
Mutualism
c)
Predation
d)
Commensalism
15.
The relationship between nut and seed-eating birds and squirrels
a)
Competition
b)
Commensalism
c)
Predation
d)
Mutualism
16.
The relationship between hookworms and humans
a)
Parasitism
b)
Mutualism
c)
Predation
d)
Commensalism
17.
The relationship between two different grasses in a meadow
a)
Competition
b)
Commensalism
c)
Predation
d)
Parasitism
18.
Evidence shows that some grasses benefit from being grazed. Which of the following terms would best describe this plant-herbivore interaction?
a)
Mutualism
b)
Commensalism
c)
Parasitism
d)
Competition
19.
Character displacement has occurred if:
a)
Two species in the same habitat evolve to be more different than if they are in different habitats.
b)
One species chases the other out of the habitat they previously shared.
c)
A characteristic is lost when an organism migrates into a new area.
d)
A characteristic lost by one species is adopted by another.
20.
Primary succession would occur in an area when:
a)
Volcanic eruptions result in a surface of hardened lava.
b)
Fire wipes out all organisms in an area.
c)
A flood occurs.
d)
A forest is bulldozed by humans.
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