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5th Gr Unit B Ch 2 Ecosystems
Test Description: Ecosystem review
Instructions: Answer all questions to get your test result.
1) Many different populations that share a habitat have a ____________________ or role.
A
community
B
niche
C
habitat
D
population
2) A single organism in an environment
A
niche
B
ecosystem
C
individual
D
habitat
3) Individuals of the SAME KIND living in the same environment make up a
A
habitat
B
population
C
community
D
ecosystem
4) A community its physical environment make up ___________________
A
niche
B
ecosystem
C
population
D
habitat
5) All the populations of organisms living together in an environment make up a
A
community
B
ecosystem
C
habitat
6) A place where a population in an ecosystem lives
A
ecosystem
B
habitat
C
niche
D
community
7) Shows the interactions among many different food chains in a single ecosystem
A
energy chain
B
food chain
C
energy pyramid
D
food web
8) An organism that makes its own food
A
consumer
B
producer
C
decomposer
9) Consumer that breaks down the tissues of dead organisms
A
consumer
B
producer
C
decomposer
10) Shows the amount of energy available to pass from one level of a food chain to the next
A
food web
B
food pyramid
C
energy pyramid
D
food chain
11) An organism in a community that must eat to get the energy it needs
A
consumer
B
producer
C
decomposer
12) The way in which the organisms in an ecosystem interact with one another according to what they eat
A
food web
B
food chain
C
energy pyramid
13) A contest among organisms for resources
A
symbiosis
B
instinct
C
competition
D
learned behavior
14) a long-term relationship between different kinds of organisms
A
learned behavior
B
parasitism
C
meiosis
D
symbiosis
15) action that the organism sees from and copies from their parents
A
instinct
B
learned behavior
C
symbiosis
16) a natural behavior that an organism is born with
A
learned behavior
B
instinct
C
symbiosis
17) When one organism is harmed and the other benefits it is called
A
commensalism
B
mutualism
C
parasitism
18) A population that begins to decline is listed as
A
extinct
B
threatened
C
exotic
D
endangered
19) A population that is likely to die out unless steps are taken to save it is listed as
A
exotic
B
extinct
C
endangered
D
threatened
20) When the last individual of a population dies, that kind of organism becomes ______________ (Example: The passenger pigeon)
A
endangered
B
exotic
C
threatened
D
extinct
*select an answer for all questions
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