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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 remain the same.
C
Population size will dramatically increase.
2) When does intraspecific competition affect population size?
A
When resources are limited.
B
When a new environment is introduced.
C
When interspecific competition is also present.
D
When resources are plentiful.
3) When a population reaches its carrying capacity, what does this mean?
A
There are enough resources for the population to increase.
B
Predation controls the size of the population.
C
The population has reached a size that can be maintained by available resources.
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
True
B
False
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 increase.
B
It will decrease.
C
It will stay the same.
6) The size of a population is always changing based on:
A
All of these
B
All interactions affecting that population
C
Abiotic factors
D
Biotic factors
7) What would cause a population to increase in size?
A
organisms die
B
organisms emigrate, or leave, a population
C
organisms immigrate, or join, the population
D
none of these
8) As a population grows, the amount of resources necessary for survival:
A
also grows
B
stays the same
C
shrinks
9) An increase in the population of predators will cause the population of prey to:
A
stay the same
B
decrease
C
increase
10) An increase in the population of prey will cause the population of predators to:
A
decrease
B
stay the same
C
increase
*select an answer for all questions
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