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