Unit 7 Ecology Review
Date:
Name:
1.
The diagram below represents many species of plants and animals and their surroundings.
The diagram best represents
A.
2.
a population
B.
a community
C.
an ecosystem
D.
the biosphere
Identify one abiotic factor that would directly a ect the survival of organism A shown in the diagram below.
page 1
3.
4.
Missing from the diagram of this ecosystem are the
A.
biotic factors and decomposers
B.
abiotic factors and decomposers
C.
autotrophs, only
D.
heterotrophs, only
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?
A.
(1)
Row
Producer
Consumer
(1)
corn
snake
mouse
owl
(2)
mouse
owl
snake
mouse
(3)
corn
owl
corn
snake
(4)
owl
corn
snake
corn
B.
(2)
Autotroph Heterotroph
C.
page 2
(3)
D.
(4)
Unit 7 Ecology Review
5.
6.
7.
Why is a mushroom considered a heterotroph?
A.
It manufactures its own food.
B.
It divides by mitosis.
C.
It transforms light energy into chemical energy.
D.
It obtains nutrients from its environment.
The greatest number of relationships between the organisms in an ecosystem is best shown in
A.
a food chain
B.
an energy pyramid
C.
a food web
D.
an ecological succession diagram
Base your answer to the following question(s) on the food web below and on your knowledge of biology.
A decrease in the grass population will most immediately decrease the available energy for the
A.
8.
mouse
B.
hawk
C.
snake
D.
frog
Which process provides the initial energy to support all the levels in the energy pyramid shown below?
A.
circulation
B.
photosynthesis
C.
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active transport
D.
digestion
Unit 7 Ecology Review
9.
An energy pyramid containing autotrophs and other organisms from a food chain is represented below.
Carnivores would most likely be located in
A.
10.
11.
12.
level I, only
B.
level I and level II
C.
level III, only
D.
level II and level III
A relationship between a consumer and producer is best illustrated by a
A.
snake eating a bird
B.
tree absorbing minerals
C.
fungus breaking down wastes
D.
deer eating grass
Two species of animals with a similar appearance live in the same habitat but do not compete for food.
This is because they most likely
A.
reproduce at di erent times of the year
B.
are the same size
C.
occupy di erent ecological niches
D.
are active at night
On which day did the population represented in the graph below reach the carrying capacity of the
ecosystem?
A.
day 11
B.
day 8
C.
page 4
day 3
D.
day 5
Unit 7 Ecology Review
13.
14.
Abandoned railroad tracks are overgrown with weeds. Ten years later there are small aspen trees growing
in the middle of the tracks. This change is an example of
A.
ecological succession
B.
biological evolution
C.
genetic variation
D.
heterotrophic nutrition
The diagram represents the changes in an area over time.
This series of changes in the area over hundreds of years is known as
A.
evolution
B.
feedback
C.
ecological succession
D.
direct harvesting
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Unit 7 Ecology Review
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Unit 7 Ecology Review
1.
Answer:
C
2.
Answer:
oxygen or water temperature
3.
Answer:
B
4.
Answer:
C
5.
Answer:
D
6.
Answer:
C
7.
Answer:
A
8.
Answer:
B
9.
Answer:
C
10.
Answer:
D
11.
Answer:
C
12.
Answer:
B
13.
Answer:
A
14.
Answer:
C
05/01/2014