Name _______________________________ Date __________________
SOL 6.9
1. All animals can be classified as:
A
B
C
D
4. What are the three elements of
ALL food chains?
producers.
herbivores.
carnivores.
consumers.
A producers, consumers, and
decomposers
B consumers, producers, and
herbivores
C decomposers, bacteria, and
herbivores
D bacteria, consumers, and carnivores
This is a picture of a simple food
chain. Use this picture to answer the
next two questions.
5. What is the relationship between
a food chain and a food web?
fox
A Food chains always end with
decomposers, but food webs never
do.
bacteria
rabbit
B Food chains show just consumers,
but food webs also show producers.
clover
C A food chain is really just one of
many paths through a food web.
2. Which one of these is a
producer?
A
B
C
D
D Food chains are used for land
ecosystems and food webs for
ocean ecosystems.
the clover
the fox
the bacteria
the rabbit
3. Which one of these is a
decomposer?
A
B
C
D
the clover
the fox
the bacteria
the rabbit
____________________________________________________________________________________________________
Copyright©1999,2000 S.S. Flanagan & D.E. Mott
Do not reproduce without permission. 07-15-00
22
Name _______________________________ Date __________________
SOL 6.9
6. The carbon-dioxide/oxygen cycle
consists of what processes?
9. Certain bacteria in some plant
roots put nitrogen compounds
into the soil. Why is this
important?
A Plants take in carbon dioxide and
release oxygen; animals take in
oxygen and release carbon dioxide.
A Some animals use nitrogen from the
soil.
B Nitrogen is part of the water and
oxygen cycles.
C Plants need nitrogen compounds to
grow.
D Other bacteria need to use the
nitrogen.
B Plants take in oxygen and release
carbon dioxide; animals take in
carbon dioxide and release oxygen.
C Plants take in carbon dioxide and
release water; animals take in
oxygen and release water.
D Plants take in oxygen and release
water; animals take in carbon
dioxide and release water.
10. A decomposer is an organism that
gets energy from dead organisms.
A decomposer is considered to
be:
A
B
C
D
7. Nitrogen goes through many
changes as a part of different
compounds in the air, in the soil,
and in plants and animals. What
is this series of changes called?
A
B
C
D
11. What is a living thing that eats
other organisms called?
the fixation process
the nitrogen cycle
the reduction process
the releasing mechanism
A
B
C
D
8. The water cycle is a name for the
continuous movement of water in:
A
B
C
D
a producer.
a consumer.
a herbivore.
a photosynthesizer.
a consumer
a producer
a decomposer
an eater
12. Within a food web, which level
stores the most energy?
the ocean.
an ecosystem.
the atmosphere.
a pond.
A
B
C
D
the producers
the consumers
omnivores
the decomposers
____________________________________________________________________________________________________
Copyright©1999,2000 S.S. Flanagan & D.E. Mott
Do not reproduce without permission. 07-15-00
23
Name _______________________________ Date __________________
SOL 6.9
13. As one moves throughout a food
chain, energy:
Use the food web below to answer
the next two questions.
A is conserved and each organism
receives more than the first.
Owl
Fox
Frog
B is lost between the levels along the
food web resulting in the
decomposers receiving the least
total amount of energy, while the
producers get the most.
Grasshopper
Bird
Rabbit
Grasses, Trees, and Bushes
C decreases because of some of the
animals hibernating.
D increases because it is conserved.
14. How does energy flow in this food
web?
A
B
C
D
from the top
from the bottom
across only
It can move in any direction.
15. What is left out of the diagram?
A
B
C
D
carnivores
herbivores
producers
decomposers
____________________________________________________________________________________________________
Copyright©1999,2000 S.S. Flanagan & D.E. Mott
Do not reproduce without permission. 07-15-00
24