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Ecosystems 2
Test Description: 6th grade ecosystems study guide
Instructions: Answer all questions to get your test result.
1) The organisms of one species living together in the same place at the same time are a
A
ecosytem
B
population
C
community
D
biotic factor
2) The job or role of an organism in the ecosystem is
A
niche
B
habitat
C
community
D
symbiosis
3) Which word best describes frogs, birds and insects in an ecosystem?
A
community
B
organism
C
ecosystem
D
population
4) All of the organisms living in an area and the nonliving features of their environment are known as a(n)
A
community
B
population
C
biotic factor
D
ecosystem
5) On a coral reef ecosystem which factor below would be considered biotic?
A
sea horse
B
sand
C
water
D
rocks
6) On a coral reef ecosystem which factor would be considered abiotic?
A
rock
B
algae
C
sponges
D
sharks
7) What is a more complete model of feeding relationships?
A
food chain
B
biotic factor
C
food web
D
food map
8) Drought, fewer plants, and fewer nesting sites are examples of ____________ factors.
A
abiotic
B
limiting
C
carrying capacity
D
biotic
9) Which of the following is an abiotic factor in a biome?
A
the kinds of trees
B
the mosses and algae
C
the average temperature
D
the number of insect species
10) Anything that restricts the number of individuals living in a population is
A
biotic potential
B
symbiosis
C
population spacing
D
a limiting factor
*select an answer for all questions
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