Energy Flow in Ecosystems — Unit test Answers

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1
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A model that shows the many interconnected feeding relationships in an ecosystem is a food . ( only use one lower case word )

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2
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The tropical pitcher plant is a unique plant that obtains its nutrition by digesting insects. The plant traps insects in its pitcher-shaped leaves and dissolves them as part of the digestion process. Tropical pitcher plants grow in warm, moist places in which the soil is poor in nutrients. Because of their feeding habits, pitcher plants are able to control the insect populations in the areas in which they live.

A
controlling insect populations
B
sharing a habitat with insects
C
having pitcher-shaped leaves
D
being a unique type of plant
3

The diagram shows a forest food web.

Question illustration
A
rabbit
B
fox
C
grasshopper
D
shrew
4

All of the populations living together in the same area are called a(n) .

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5

The producer in an energy pyramid contains about 1,000 kcal of energy.About how much of this energy is used by the producer or lost as heat to the environment?

A
10 kcal
B
90 kcal
C
100 kcal
D
900 kcal
6

Female chimpanzees that live together often help take care of one another’s young.This best demonstrates which type of relationship between the female chimpanzees living together?

A
cooperation
B
competition
C
predation
D
commensalism
7

Which describes a relationship in which one organism kills and eats another organism?

A
mutualism
B
predation
C
competition
D
commensalism
8

White-tailed deer eat green plants, acorns, fruits, nuts, and twigs.Which describes the role of a white-tailed deer?

A
autotrophic omnivore
B
heterotrophic omnivore
C
autotrophic herbivore
D
heterotrophic herbivore
9

Which two levels of ecological organization include members of only a single species?

A
population and community
B
organism and population
C
community and organism
D
ecosystem and population
10

Which is the best example of parasitism?

A
A pearlfish hides within a sea cucumber, and the sea cucumber is not affected.
B
A sparrow catches and eats a painted lady butterfly.
C
A tapeworm lives inside the intestines of a pig, robbing the pig of nutrients it needs.
D
An ant eats nectar produced by a flower, and the flower is not harmed.
11

parasitismmutualismcommensalismpredation

A
parasitism
B
mutualism
C
commensalism
D
predation
12

The picture shows a giraffe eating leaves.

Question illustration
A
abiotic interacting with abiotic
B
biotic interacting with biotic
C
abiotic interacting with biotic
D
biotic interacting with abiotic
13

Which term best describes all of the populations living together in a particular area?

A
community
B
niche
C
environment
D
ecosystem

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