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Populations
Test Description: After a study of populations in a biology class, these are the terms you should know!
Instructions: Answer all questions to get your test result.
1) When the birthrate equals the deathrate, the population
A
gradually decreases
B
reaches zero growth
C
becomes unstable
D
gradually increases
2) Each of the following is a density-dependent limiting factor except
A
weather
B
parasitism
C
crowding
D
predation
3) After rabbits were introduced into Australia, the rabbit population went into exponential growth because rabbits had no natural
A
parasites
B
predators
C
prey
D
symbionts
4) A frost that kills insects that feed on a plant is
A
not a limiting factor
B
independent of population density
C
a behavioral factor
D
dependent on population density
5) A symbiotic relationship between barnacles and whales is an example of
A
parasitism
B
predation
C
commensalism
D
mutualism
6) An example of a population is
A
the number of maples, white oaks, spruce, gray squirrels, and owls in the forest
B
the number of different species of Felis in a geographic area
C
all the fish in Lake Erie
D
Ursus americanus in Pennsylvania
7) When a species has reached a steady state, it has reached a particular environment's
A
carrying capacity
B
ecological capacity
C
logistic capacity
D
exponential capacity
8) In a logistic curve, the initial growth
A
is very rapid
B
is very slow
C
slows steadily
D
is exponential
9) In most natural situations, predator-prey relationships
A
are out of balance
B
cannot coexist
C
coexist for a long time
D
destroy one another
10) In a logistic growth curve, exponential growth is the phase in which the population
A
reaches carrying capacity
B
growth stops
C
growth begins to slow down
D
grows quickly and few animals are dying
*select an answer for all questions
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