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Population Dynamics
Test Description: Population dynamics review
Instructions: Answer all questions to get your test result.
1) When a population is introduced to unlimited resources, what will happen?
A
Population size will dramatically decrease.
B
Population size will dramatically increase.
C
Population size will remain the same.
2) When does intraspecific competition affect population size?
A
When resources are limited.
B
When interspecific competition is also present.
C
When resources are plentiful.
D
When a new environment is introduced.
3) When a population reaches its carrying capacity, what does this mean?
A
There are enough resources for the population to increase.
B
The population has reached a size that can be maintained by available resources.
C
Predation controls the size of the population.
D
Interspecific competition forces the population to decrease.
4) True or False: Prey populations are dependent on predators but predator populations are not dependent on prey.
A
False
B
True
5) Crown of thorn sea stars are predators of coral. If coral bleaching destroys the coral in an ecosystem, what will happen to the crown of thorns sea star population?
A
It will stay the same.
B
It will increase.
C
It will decrease.
6) The size of a population is always changing based on:
A
Biotic factors
B
Abiotic factors
C
All of these
D
All interactions affecting that population
7) What would cause a population to increase in size?
A
none of these
B
organisms immigrate, or join, the population
C
organisms die
D
organisms emigrate, or leave, a population
8) As a population grows, the amount of resources necessary for survival:
A
also grows
B
shrinks
C
stays the same
9) An increase in the population of predators will cause the population of prey to:
A
stay the same
B
increase
C
decrease
10) An increase in the population of prey will cause the population of predators to:
A
decrease
B
increase
C
stay the same
*select an answer for all questions
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