7th Grade Science
Matter and Energy
Review
#1
Producers,
Primary Consumers,
Secondary Consumers, &
Tertiary Consumers are
the four layers of this
__________________.
.
A: Energy pyramid
B:
Decomposer pyramid
C: Producer pyramid
D:
Herbivore pyramid
A. Energy pyramid
#2
Each level an organism
occupies on this food
chain in this pyramid is
called a
_________________ .
A: Energy Level
B:
Trophic Level
C: Producer level
D:
Herbivore Level
B. Trophic Level
#3
Which trophic level
of this energy
pyramid contains
the most energy?
A: Producers
B:
Primary Consumers
C: Secondary Consumers
D:
Tertiary Consumers
A. Producers
#4
Where does the
energy in the
Producers trophic
level come from?
A: Primary consumers
B:
Secondary consumers
C: Sun
D:
None of these
C. Sun
#5
What trophic level of
this Energy pyramid
has the least energy?
A: Producers
B:
Primary Consumers
C: Secondary Consumers
D:
Tertiary Consumers
D. Tertiary consumers
#6
Organisms that break
down the remains of
plants and other
organisms.
A: omnivore
B:
prey
C: herbivore
D:
decomposer
D. decomposer
#7 In a compost pile,
microorganisms (decomposers)
break down materials.
*In this process, chemical energy
is converted to _______ energy.
A: heat
B:
electromagnetic
C: hydroelectric
D:
None of these
A. Heat
#8
This energy pyramid also lists
four organisms in order in a
__________ from Producer to
Tertiary Consumer.
(For the test, be able to list
organisms in order in a food chain.)
A: food chain
B:
consumer chain
C: trophic chain
D:
None of these
A. Food chain
#9
What would happen in this food chain if
a disease killed off most of the snakes?
A:
The hawks would decrease,
the mice would increase, &
the corn would decrease
C: Both of these
B:
D:
The hawks would increase,
the mice would decrease, &
the corn would increase
Neither of these
A.
The hawks would decrease,
the mice would increase, &
the corn would decrease
#10
What would happen if these was no corn
in this ecosystem?
The mice, snakes, and
A: The mice, snakes, and
B: hawks would all decrease
C: Both of these
D:
hawks would all increase
Neither of these
B.
The mice, snakes, and hawks
would all decrease
#11
What kind of organism is not shown in
this diagram?
A: Producer
B: Consumer
C: Decomposer
D:
None of these
C. Decomposer
#12
Which of these organisms is responsible
for the transfer of radiant energy (sun) to
chemical energy?
A: corn
B: mouse
C: snake
D:
hawk
A. Corn
#13
What type of
organisms are
necessary to insure
that nutrients are
returned to nature?
A: Producers
B:
Consumers
C: Decomposers
D:
Omnivores
C. Decomposers
#14
*Decomposers produce heat when
they are breaking down dead
material.
*The energy in the dead organisms
is being converted to heat energy.
What type of energy is being
converted?
A: Chemical
B:
Physical
C: Mechanical
D:
None of these
A. Chemical
#15
What important roll do
decomposers play in the
growth of trees in a forest?
Decomposers kill trees
as a means of
A:
controlling tree
populations
B:
Decomposers are not
necessary for the
growth of trees
Decomposers provide
C: trees have important
nutrients
D:
None of these
C. Decomposers
provide trees with
important nutrients.
#16
What type of
organisms are
necessary to insure
that nutrients are
returned to nature?
A: Producers
B:
Consumers
C: Decomposers
D:
Omnivores
C. Decomposers
#17
6CO2 + 6H2O + sunlight energy
C6H12O6 + 6O2
What does this equation represent?
A: Photosynthesis
B: Respiration
C: Neither
D:
Both
A. Photosynthesis
#18
6CO2 + 6H2O + sunlight energy
C6H12O6 + 6O2
The light energy that is shown in this
reaction is converted into ______ energy.
A: mechanical
B: chemical
C: electrical
D:
None of these
B. Chemical
#20
An organism that
produces its own food
using light, water,
carbon dioxide and
other chemicals.
Example: plants
(producers)
A: heterotroph
B: autotroph
C: consumer
D:
None of these
B. Autotroph
#21
An organism that feeds
off of other forms of life.
Example: wolf
(consumers)
A: heterotroph
B: autotroph
C: consumer
D:
None of these
A. Heterotroph
#22
An organism
that has a
nucleus and
organelles.
A: Eukaryotic
B:
Prokaryotic
C: Both
D:
Neither
A. Eukaryotic
#23
An organism
that does not
have a
nucleus and
organelles.
A: Eukaryotic
B:
Prokaryotic
C: Both
D:
Neither
B. Prokaryotic
#24
Wheat
Clover
Dandelion
*Be able to create a food web, such as the one
above, using at least seven different organisms.
#25
*Draw a energy pyramid
*Describe the energy flow
*Use the following terms
autotroph, heterotroph, producer, primary consumer,
secondary consumer, and tertiary consumer
Great Job!!!!
Thank you for playing!