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Relationships In An Ecosystem
Test Description: Relationships in an Ecosystem
Instructions: Answer all questions to get your test result.
1) A special relationship between organisms that lasts a long time is _________________.
A
mutualism
B
commensalism
C
parasitism
D
symbiosis
2) Because each area has a certain _________________, it can only support a limited population.
A
mutualism
B
carrying capacity
C
limiting factor
D
habitat
3) Water is a(an) _________________ that restricts the growth of populations in an ecosystem.
A
limiting factor
B
symbiosis
C
niche
D
habitat
4) When two organisms benefit in a symbiotic relationship, the relationship is called _______________.
A
parasitism
B
commensalism
C
mutualism
D
symbiosis
5) A symbiotic relationship in which one organism benefits while the other is harmed is ______________.
A
niche
B
parasitism
C
mutualism
D
commensalism
6) A relationship in which one organism benefits and the other is not harmed is ___________.
A
parasitism
B
mutualism
C
commensalism
D
niche
7) The place in which an organism lives and hunts for food is its _______________.
A
niche
B
habitat
C
carrying capacity
D
limiting factor
8) The particular role that an organism plays in a community is its _______________.
A
limiting factor
B
symbiosis
C
habitat
D
niche
9) In ________________, the parasite harms the ______________ organism it lives on or in.
A
symbiosis/niche
B
mutualism/niche
C
commensalism/host
D
parasitism/host
10) __________ limits competition as organisms develop relationships that allow them to live together.
A
parasitism
B
commensalism
C
symbiosis
D
exceeds
11) When the population of an area ______________ its carrying capacity, some plants or animals begin to die off.
A
host
B
compete
C
exceeds
D
vegetation
12) Each ecosystem has certain limiting factors that restrict the size of its populations. These include water, temperature, soil types, and the amount of ______________ available.
A
limiting factor
B
carrying capacity
C
vegetation
D
host
13) A symbiotic relationship that benefits only one organism, but does no harm to the other is known as ___________________.
A
symbiosis
B
commensalism
C
vegetation
D
parasitism
14) Living things _________________________________ for resources in an ecosystem.
A
host
B
exceeds
C
symbiosis
D
compete
15) The population that an area can support is its _____________________.
A
limiting factor
B
host
C
exceeds
D
carrying capacity
*select an answer for all questions
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