food webs quiz
Name:
1.
Date:
The picture below shows an energy pyramid.
3.
What will most likely happen to the foxes and the
wolves if the rabbits are removed?
A.
The foxes will eat more wolves.
B.
The foxes will eat fewer wolves.
C.
There will be more foxes and wolves.
D. There will be fewer foxes and wolves.
2.
The picture below shows an ocean bay food chain.
Sea otters move into the ocean bay. They eat all
the sea urchins. This change will cause the
A.
kelp to have less food.
B.
crabs to have more food.
C.
sea ducks to have less food.
D. arctic foxes to have more food.
page 1
Which model correctly shows energy
food chain?
A.
B.
C.
D.
ow in a
4.
A marine food web is shown in the diagram below.
5.
A marine food web is shown below.
Which organism below belongs in level 3 of this
marine food web?
A.
salmon
B.
zooplankton
C.
sea alga
D. polar bear
Which chart correctly shows three of the organisms
according to their roles in cycling matter in the
marine food web?
A.
B.
C.
D.
page 2
food webs quiz
6.
The picture below shows the energy ow through
a meadow community.
8.
Hawks would increase and foxes would
increase.
B.
Hawks would decrease and foxes would
increase.
C.
Meadow plants would increase and rabbits
would decrease.
D. Meadow plants would decrease and rabbits
would decrease.
7.
A.
Energy ows through the organisms from
bottom to top and increases at each level.
B.
Energy ows through the organisms from
bottom to top and decreases at each level.
C.
Energy ows through the organisms from top
to bottom and increases at each level.
D. Energy ows through the organisms from top
to bottom and decreases at each level.
Which of the following would most likely occur
to the populations within the community of
organisms immediately after a wild re burns the
environment?
A.
Which statement best describes the ow of energy
as it passes through the organisms in the pyramid?
9.
The diagram below shows a simple food web.
Which statement best describes what will happen
if the population of herbivores in the community
decreases?
A.
The population of foxes will increase.
B.
The population of hawks will increase.
C.
The population of rabbits will increase.
Which animal is classi ed as an omnivore?
A.
red fox
B.
deer
C.
black bear
D. rabbit
D. The population of meadow plants will
increase.
page 3
food webs quiz
10.
The diagram below shows a simple food web.
11.
Which of the following animals might compete
with the coyote in this food chain?
A.
Decomposers are important in the food chain
because they
A.
produce their own food using light from the
Sun.
B.
stop the ow of energy from one organism to
another.
C.
break down dead organisms and recycle
nutrients into the soil.
D. are microscopic and other organisms cannot
consume them.
B.
C.
12.
The diagram below shows a marine food chain.
Phytoplankton ! Zooplankton
! Herring ! Salmon
The zooplankton in this food chain are
D.
A.
primary producers.
B.
primary consumers.
C.
secondary consumers.
D. tertiary consumers.
page 4
food webs quiz
13.
The table below contains information about animal
diets.
14.
A forest-ecosystem food web is shown below.
Which energy pyramid best represents the data in
the table?
A.
If additional wrens are introduced into this
ecosystem, there will most likely be an immediate
decrease in the
B.
A.
frog population.
B.
snake population.
C.
falcon population.
D. grasshopper population.
C.
15.
D.
In a pond, the primary producer is a green alga,
Spirogyra; the primary consumer is the crustacean,
Daphnia; the secondary consumer is a small sh,
the bluegill; and the tertiary consumer is a larger
sh, the smallmouth bass. What changes can be
expected in the pond if the Daphnia are killed
with pesticides?
A.
The Spirogyra population will probably die.
B.
The bluegill population will probably increase.
C.
The Daphnia population will eat something
else.
D. The smallmouth bass population will die.
page 5
food webs quiz
16.
A food chain is shown below.
Examining Simple Communities
19.
A group of organisms that interact with and
depend upon one another is called a community.
The movement of matter and energy through a
community can be studied by examining its food
web. As organisms eat other organisms, energy
and nutrients pass through various feeding levels.
These feeding levels are called trophic levels. The
following is a diagram of the energy and nutrient
ow through a simple community.
Grasses ! Crickets ! Field Mice ! Hawks
For the food chain shown, which of the following
changes would have the most severe consequences?
A.
a drastic decrease in rainfall, causing drought
B.
the poaching of predatory hawks by game
hunters
C.
the introduction of a second predator that eats
eld mice
D. a parasitic infestation that reduces the cricket
population
Which group would most likely contain living
algae?
17.
Which of these organisms would most likely be
found at the top of an energy pyramid?
A.
Producers
B.
First order consumers
A.
clams
B.
C.
Second order consumers
C.
sharks
D. kelp
sardines
D. Decomposers
20.
18.
Which of these organisms would most likely be
found at the bottom of a biomass pyramid?
A.
giant squids
B.
C.
sea cucumbers
D. green algae
According to the diagram, nutrients from dead
organisms are released into the soil by the action
of
.
A.
sand sharks
producers
B.
rst order consumers
C.
third order consumers
D. decomposers
page 6
food webs quiz
21.
23.
Ecosystems are composed of all living and
nonliving components in an area. Food webs
show the ow of nutrients and energy within an
ecosystem.
Use the food web to answer the following
questions.
A group of students on a eld trip observed
the following organisms on an old oak tree:
Woodpecker Honey Bee Oak SquirrelBeetle
Caterpillar 1. Which of the following food chains
is most likely to be found in this ecosystem?
A.
Caterpillar ! honey bee ! woodpecker
B.
Oak tree ! squirrel ! woodpecker
C.
Oak tree ! caterpillar ! woodpecker
Suppose that a new predator of the rabbit migrated
to this ecosystem. What is the most likely initial
e ect on the other organisms?
D. Beetle ! woodpecker ! squirrel
22.
The diagram shows part of an aquatic food web
for a stable lake ecosystem in Connecticut.
A.
More competition among the mice for food
B.
More competition among the hawks for food
C.
Less competition among snakes for food
D. Less grass available for food
24.
What is the source of energy for the algae?
A chemical pesticide was applied to an area of this
ecosystem by a landowner to control the mouse
population. There was a decrease in the mouse
population due to the presence of this pesticide.
Which one of the following would most likely
occur rst due to this change in the ecosystem?
A.
The amount of grass would decrease.
A.
waves
B.
The snake population would increase.
B.
sunlight
C.
The rabbit food supply would increase.
C.
bacteria
D. The snake food supply would increase.
D. rotifers, water eas and tadpoles
page 7
food webs quiz
25.
26.
The available chemical energy in this ecosystem
.
A.
decreases as it
producer
B.
remains constant as it ows from consumer to
producer
C.
decreases as it
consumer
ows from producer to
D. increases as it
consumer
ows from producer to
28.
ows from consumer to
Interactions in an ecosystem result from the
transfer of matter and energy from producers to
consumers and eventually to decomposers.
What are the forms of energy transfer from
#1 ! #4?
A.
Chemical energy to chemical energy
Which one of the following is true of grass in an
ecosystem?
B.
Light energy to chemical energy
C.
Chemical energy to heat energy
A.
It converts oxygen to glucose.
D. Heat energy to mechanical energy
B.
It produces carbon dioxide from oxygen and
water.
C.
It produces glucose from carbon dioxide and
water.
D. It converts water to energy.
27.
If animals eat plants to get energy, where do
plants get their energy?
A.
Soil
B.
Water
C.
Wind
D. Sun
page 8
food webs quiz
29.
A simple food chain is shown.
30.
What is the source of food in this food chain?
A.
Sun
B.
Frog
C.
Grass
D. Grasshopper
How would the removal of earthworms from the
food chain a ect the other organisms?
A.
The number of bass will increase.
B.
The number of cray sh will decrease.
C.
The cray sh will get their energy directly
from the Sun.
D. The number of bass and ospreys will increase.
page 9
food webs quiz
31.
A student examines the information in the table.
The student concludes that Organism W should
be placed at the base of the food web, to
represent the feeding relationships in the marine
ecosystem. However, the student later learns that
Organism W's cells do not contain chloroplasts.
Organism
T
Feeds on Organism U
Behavior
Movement
U
Feeds on Organisms V and W
Mobile
33.
In ecosystems, the sun's energy is transferred
through food webs as shown below.
Mobile
V
Is eaten by Organism U
Mobile
W
Is eaten by Organisms U and V
Stationary
Which conclusion would be appropriate, based on
the new information?
The sun's energy is most directly available to
people through
A.
Another organism in the marine ecosystem is
a producer.
A.
path A.
B.
B.
Organism W is a secondary consumer in the
marine ecosystem.
C.
path C.
D. path D.
C.
The role of Organism T in the marine
ecosystem changes during its life.
path B.
D. This marine ecosystem does not have any
producers.
32.
34.
Wolves get energy from eating rabbits. Rabbits
get energy from eating grass. The grass makes its
own food energy. If lots of the wolves were killed,
then
A.
there would be more rabbits.
B.
there would be fewer rabbits.
C.
more grass would grow.
We get energy from the food we eat. The energy
in the food rst comes from the
A.
soil.
B.
fertilizers used by farmers.
C.
sun.
D. vitamins added by food manufacturers.
D. less grass would be eaten.
page 10
food webs quiz
35.
Use the diagram below to answer the question.
37.
Use the food chain below to answer the
following question.
In this energy pyramid, which organism would
most likely be in level 2?
A.
bird
B.
fox
C.
caterpillar
D. tree
What do the arrows in the food chain indicate
about the ow of energy in an ecosystem?
36.
Use the diagram below to answer the question.
A.
Energy is continuously recycled by the
organisms in an ecosystem.
B.
Energy ows in one direction in an ecosystem,
from producers to consumers.
C.
More of the available energy in an ecosystem
is given to large animals than to small
animals.
D. Organisms at the end of the food chain receive
more energy than those at the beginning.
Which group of organisms is not represented in
the diagram above of a simple food web?
A.
decomposers
B.
prey
C.
consumers
D. producers
page 11
food webs quiz
38.
Use the food web below to answer the following
question.
Which group is not represented in the food web?
A.
producers
B.
primary consumers
C.
secondary consumers
D. decomposers
page 12
food webs quiz
Problem-Attic format version 4.4.217
c 2011–2014 EducAide Software
_
Licensed for use by Taylor Wharton
Terms of Use at www.problem-attic.com
food webs quiz
10/03/2014
1.
Answer:
D
21.
Answer:
2.
Answer:
C
22.
Answer:
B
3.
Answer:
A
23.
Answer:
B
4.
Answer:
A
24.
Answer:
C
5.
Answer:
C
25.
Answer:
C
6.
Answer:
D
26.
Answer:
C
7.
Answer:
D
27.
Answer:
D
8.
Answer:
B
28.
Answer:
B
9.
Answer:
C
29.
Answer:
C
10.
Answer:
C
30.
Answer:
B
11.
Answer:
C
31.
Answer:
A
12.
Answer:
B
32.
Answer:
A
13.
Answer:
A
33.
Answer:
B
14.
Answer:
D
34.
Answer:
C
15.
Answer:
D
35.
Answer:
C
16.
Answer:
A
36.
Answer:
A
17.
Answer:
C
37.
Answer:
B
18.
Answer:
D
38.
Answer:
D
19.
Answer:
A
20.
Answer:
D