8.L.3.2 Practice Questions
Date:
Name:
1.
2.
In a forest community, a shelf fungus and a slug live on the side of a decaying tree trunk. The fungus digests and
absorbs materials from the tree, while the slug eats algae growing on the outside of the trunk. These organisms do
not compete with one another because they occupy
A.
the same habitat, but di erent niches
B.
the same niche, but di erent habitats
C.
the same niche and the same habitat
D. di erent habitats and di erent niches
The diagram below represents a food chain made up of organisms found in a eld.
Which row in the chart correctly identi es characteristics that can be associated with the members of this food
chain?
Row
Producer
Consumer
Autotroph
Heterotroph
(2)
mouse
owl
snake
mouse
(4)
owl
snake
corn
(1)
corn
(3)
A.
(1)
B.
corn
snake
mouse
owl
corn
corn
(2)
C.
page 1
(3)
owl
snake
D. (4)
3.
The ecological niches of three bird species are shown in the diagram below.
What is the advantage of each bird species having a di erent niche?
A.
As the birds feed higher in the tree, available energy increases.
B.
More abiotic resources are available for each bird.
C.
Predators are less likely to feed on birds in a variety of locations.
D. There is less competition for food.
page 2
8.L.3.2 Practice Questions
4.
The graph below represents a predator-prey relationship.
What is the most probable reason for the increasing predator population from day 5 to day 7?
A.
an increasing food supply from day 5 to day 6
B.
a predator population equal in size to the prey population from day 5 to day 6
C.
the decreasing prey population from day 1 to day 2
D. the extinction of the yeast on day 3
5.
The wrasse, a small marine sh, periodically cleans harmful parasites from the mouth and body of the moray eel.
The moray, in turn, protects the wrasse from larger predators and provides it with a constant supply of food. This
is an example of the type of relationship known as
A.
6.
mutualism
B.
parasitism
C.
commensalism
D. saprophytism
In New York State, bluebirds and sparrows inhabit nearly the same ecological niche. In many areas, bluebirds are
being replaced by the sparrows as a result of
A.
symbiosis
B.
competition
C.
page 3
mutualism
D. equilibrium
8.L.3.2 Practice Questions
7.
Which pair of organisms would most likely compete for the same ecological niche?
A.
8.
tree and fungi
D. deer and bacteria
synthesis
B.
mutualism
C.
parasitism
D. commensalism
host
B.
saprophyte
C.
parasite
D. scavenger
commensalism
B.
mutualism
C.
saprophytism
D. parasitism
As a bee moves from plant to plant consuming nectar, it also transfers pollen from plant to plant. Both the bee
and the plants in this association are bene ted. This type of symbiosis is
A.
12.
C.
Both species of organisms in a lichen bene t from a symbiotic association called
A.
11.
deer and wolf
An organism that obtains its food at the expense of another living organism is known as a
A.
10.
B.
The relationship between athlete's foot fungus and humans is known as
A.
9.
bacteria and fungi
commensalism
B.
mutualism
C.
parasitism
D. saprophytism
Which statement describes symbiotic relationships?
A.
Di erent species live in close associations in an ecosystem.
B.
Abiotic factors interact in an ecosystem.
C.
Saprophytes respond to abiotic changes in an ecosystem.
D. Ecosystem feeding levels show changes in energy.
page 4
8.L.3.2 Practice Questions
13.
An overpopulation of deer in a certain area will most likely lead to
A.
a decrease in the number of predators of the deer
B.
an increase in the number of autotrophs available for food
C.
a decrease in the incidence of disease
D. an increase in competition between the deer
14.
A ea in the fur of a mouse bene ts at the mouse's expense. This type of relationship is known as
A.
15.
18.
parasitism
C.
saprophytism
D. mutualism
niche
B.
habitat
C.
biome
D. succession
Which type of relationship is illustrated by a protozoan causing the disease malaria in a human host?
A.
17.
B.
The role of an organism within a community is known as its
A.
16.
commensalism
parasitism
B.
commensalism
C.
saprophytism
D. mutalism
The relationship between eas and a dog is most similar to the relationship between
A.
honeybees and a ower
B.
orchids and a tree
C.
nitrogen- xing bacteria and a legume
D. athlete's–foot fungus and a human
A protozoan lives inside a rat and takes its nourishment from the rat's body. Because the protozoan damages the
rat's brain, the rat loses its fear of cats. A cat attacks an infected rat; the protozoan enters the cat's body and
completes its life cycle.
Which of these describes the relationship between the protozoan and the rat?
A.
commensalism
B.
parasite-host
C.
page 5
mutualism
D. predator-prey
8.L.3.2 Practice Questions
19.
In his studies of birds in the Galapagos Islands, Charles Darwin observed that a few bird varieties with similar
beak size and shape inhabited a particular area. The limited number of similar varieties was most likely due to
A.
competition for the same type of food
B.
competition for a speci c concentration of oxygen in the atmosphere
C.
the presence of an excessive number of autotrophs
D. the presence of a disease that attacks birds with similar beaks
20.
Which organism would most likely have a predator-prey relationship?
A.
21.
22.
tapeworm and dog
B.
barnacle and whale
C.
hawk and mouse
D. rabbit and grass
Which factor promotes competition between organisms in an ecosystem?
A.
cycling of minerals
B.
decomposition of organic matter
C.
limited resources
D. presence of saprophytes
Many lichens are composed of fungi and algae. The fungi get sugars from the algae, and the algae get water,
minerals, and proteins from the fungi.
Which of the following terms best describes the relationship between the organisms in the lichens?
A.
23.
commensalism
B.
competition
C.
mutualism
D. parasitism
Use the information below to answer the following question(s).
Hummingbirds need large amounts of energy to ap their wings between 60 and 200 times per second. Their
wings beat so rapidly that it is di cult to see them move. They often appear suspended in air for extended periods
of time without changing their location. Hummingbirds have long bills and grooved tongues to reach into owers
to feed on ower nectar. They also feed on insects.
Which term best describes the ecological relationship between hummingbirds and insects?
A.
mutualism
B.
parasite-host
C.
page 6
predator-prey
D. commensalism
8.L.3.2 Practice Questions
24.
Use the information and the gure below to answer the following question(s).
Many plants that grow in tropical rain forests have specialized roots that anchor them to the branches and trunks of
trees. They do not harm the trees. These plants get food and water from various sources, including the air and
dead organic matter found on the trees.
One example of these plants found in tropical rain forests is the bromeliad. Its leaves form a cup-like structure that
is able to hold water. This water provides a feeding and breeding area for many insects and frogs. Snakes and
lizards also come to these plants in search of food and water. A cross-section showing the inside of a bromeliad is
shown below.
Bromeliad Cross-Section
Snakes and lizards come to the bromeliads to feed on frogs and their eggs. The relationship between the snakes,
lizards, and frogs can best be described as
A.
mutualism
B.
parasite-host
C.
page 7
predator-prey
D. commensalism
8.L.3.2 Practice Questions
25.
Base your answer(s) to the following question(s) on the diagram of a food web and on your knowledge of biology.
State one example of a predator-prey relationship found in the food web. Indicate which organism is the predator
and which is the prey.
page 8
8.L.3.2 Practice Questions
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8.L.3.2 Practice Questions
05/13/2014
1.
Answer:
A
21.
Answer:
C
2.
Answer:
C
22.
Answer:
C
3.
Answer:
D
23.
Answer:
C
4.
Answer:
A
24.
Answer:
C
5.
Answer:
A
25.
Answer:
6.
Answer:
B
7.
Answer:
A
8.
Answer:
C
9.
Answer:
C
10.
Answer:
B
11.
Answer:
B
12.
Answer:
A
13.
Answer:
D
14.
Answer:
B
15.
Answer:
A
16.
Answer:
A
17.
Answer:
D
18.
Answer:
B
19.
Answer:
A
20.
Answer:
C
lion/deer, lion/rabbit, hawk/mouse,
mouse/cricket, or frog/cricket