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Ecosystem
Test Description: Ecosystem review
Instructions: Answer all questions to get your test result.
1) _____ is the continuous process by which water moves between Earth's surface and the atmosphere.
A
nitrogen cycle
B
water cycle
C
oxygen cycle
D
carbon cycle
2) Which element must be fixed in order for organism to use it to build proteins?
A
oxygen
B
phosphorus
C
carbon
D
nitrogen
3) What group of organisms take carbon from the air to build sugars and starches?
A
producers
B
decomposers
C
parasites
D
predators
4) A consumer, such as a deer, that eats only plants is called a
A
carnivore
B
producer
C
herbivore
D
decomposer
5) When organisms struggle to use the same limited rsource, such as food, this is called___
A
predation
B
decompostition
C
photosynthesis
D
competition
6) A community of living and nonliving things that exist in a particular area is called____
A
predation
B
an ecosystem
C
a niche
D
a population
7) A _______ is all members of the same species iving in a particular area.
A
niche
B
prey
C
ecosystem
D
population
8) Which of the following is an abiotic factor?
A
the amount of available clover in a yard
B
the size of the deer in the meadow
C
the number of frogs in a pond
D
the depth of the water in a lake
9) An environment that provives the thing required by an orgaism is called a ___
A
biotic factor
B
habitat
C
population
D
ecosystem
10) Which of these is an example of a predator-prey relationship?
A
tape worm-sheep
B
bee-clover
C
zebra-grass
D
lion-zebra
11) What will happen to the number of frogs in a pond if all of the flies die off due to chemical spraying?
A
increase
B
decrease
C
remain the same
12) Which of these is an example of mutualism?
A
zebra-lion
B
flea-dog
C
remora-shark
D
bee-clover
13) The number of species in an ecosystem is referred to as
A
a niche
B
species diversity
C
abiotic factors
D
genetic diversity
14) A diagram of overlapping food chains that shows the flow of energy is called a ____
A
food pyramid
B
condensation
C
food web
D
nitrogen cycle
15) Which of these is NOT a defensive adaption by a prey species?
A
It can use coloration to blend into its surroundings.
B
It can puff itself up to look big and intimidating.
C
It can look like like a Monarch butterfly that tastes bad.
D
It can produce poison to paralyze its food.
16) Which naturalist developed the theory of natural selection?
A
Steve Irwin
B
Rachel Carson
C
David Attenborough
D
Charles Darwin
17) _____ are behaviors or physical characteristics that help an organism survive.
A
evaporation
B
niche
C
adaptations
D
abiotic factors
*select an answer for all questions
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