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WorksheetsEnergy in Ecosystems
Total questions: 80
Worksheet time: 2hrs 46mins
Name
Class
Date
1.
Which organism do the owl and the weasel compete for in the food web?
a)
Hawk
b)
Spider
c)
Grasshopper
d)
Shrew
2.
Which of the following is a herbivore?
a)
cricket
b)
frog
c)
hawk
d)
shrew
3.
How many carnivores are shown in this food web?
a)
6
b)
4
c)
5
d)
3
4.
A consumer that hunts is called:
a)
a producer.
b)
an omnivore.
c)
a predator.
d)
a herbivore.
5.
How many herbivores are in this web?
a)
1
b)
2
c)
3
d)
4
6.
All of the living AND non-living things in an particular area is called a(n):
a)
ecosystem
b)
house
c)
community
d)
mountain
7.
Which of the following best describes the deer's role in the ecosystem?
a)
herbivore
b)
omnivore
c)
carnivore
d)
decomposer
8.
Which of the following best describes the wolf's role in this ecosystem?
a)
herbivore
b)
omnivore
c)
carnivore
d)
decomposer
9.
Bacteria and fungi typically serve what role in an ecosystem?
a)
herbivore
b)
carnivore
c)
omnivore
d)
decomposer
10.
An organism that gets energy from eating other organisms is a ______________.
a)
producer
b)
consumer
c)
decomposer
d)
prey
11.
An animal that gets energy from eating both plants and animals is a(an) _____________.
a)
herbivore
b)
carnivore
c)
omnivore
d)
autotroph
12.
A connection of food chains with many food energy paths in an ecosystem is a ____________.
a)
ecosystem
b)
food web
c)
environment
d)
population
13.
The diagram is intended to show relationships in an ecosystem. What do the arrows represent?
a)
The direction of population migration
b)
Differences in dietary habits
c)
Progressively smaller organisms
d)
The direction of the energy flow
14.
Grass is considered a ...
a)
consumer
b)
producer
c)
decomposer
d)
composers
15.
What does a food chain represent?
a)
How all living organisms within a habitat are connected.
b)
All of the things that a particular animal eats.
c)
How plants create their own food.
d)
A single path of energy transfer within a habitat.
16.
What do consumers do in the food chain?
a)
They obtain energy from other organisms.
b)
They break down dead plant and animal material.
c)
They use sunlight to make food.
d)
They are parasites of plants.
17.
Which of the following directly use the Sun's energy to produce their own food?
a)
decomposers
b)
carnivores
c)
consumers
d)
producers
18.
On a safari at night, a lion hunts and feeds on an antelope. In this relationship, the lion is the ____________________ and the antelope is the _________________.
a)
Parasite/host
b)
Predator/prey
c)
Prey/Predator
19.
How do producers obtain energy?
a)
They conduct photosynthesis.
b)
They consume plants.
c)
They consume primary consumers.
d)
They consume secondary consumers.
20.
All food chains_____________________
a)
have more consumers than producers
b)
produce and use same amount of energy
c)
begin with a producer
d)
are unhealthy
21.
What is prey?
a)
An organism that is consumed
b)
An organism that consumes
c)
neither
22.
The image provided is an example of a(n):
a)
Producer
b)
Autotroph
c)
Consumer
d)
Insect
23.
An animal that eats only plants is an...
a)
carnivore
b)
omnivore
c)
herbivore
d)
decomposer
24.
Overlapping food chains in an ecosystem make up....
a)
food web
b)
food chain
c)
niche
d)
symbiosis
25.
What is this called?
a)
Food Web
b)
Food Chain
c)
Abiotic Factors
d)
Biotic Factors
26.
In the energy pyramid here, which organisms have the most energy available?
a)
Producers
b)
Carnivores
c)
Herbivores
d)
Top Predator
27.
In the energy pyramid below, which organism has the least amount of energy available?
a)
Producers
b)
Herbivores
c)
Carnivores
d)
Top Predator
28.
Which organisms in figure 1 could be classified as carnivores?
a)
deer, mice, and grasshoppers
b)
grasshoppers, lizards, and shrews
c)
coyotes, shrews, and lizards
d)
mountain lion, deer, and shrews
29.
If these organisms were arranged in a food pyramid, which organism would have the least amount of total energy available?
a)
coyote
b)
insect
c)
lizard
d)
shrub
30.
The rabbit in this food web would be considered a:
a)
Decomposer
b)
Producer
c)
Secondary Consumer
d)
Primary Consumer
31.
What may happen if the snowshoe hare was removed from the food web pictured?
a)
The insects in the habitat would increase.
b)
The shrew population would decrease due to being only hawk food source.
c)
The willow tree population would decrease.
d)
Foxes would dies due to no food source.
32.
What is a example of a abiotic factor?
a)
Panda
b)
Turtle
c)
Butterfly
d)
weather
33.
What is an example of a biotic factor?
a)
skunk
b)
rocks
c)
soil
d)
water
34.
Temperature, light, air, water, and soil are all _____ parts of the environment
a)
alive
b)
biotic
c)
abiotic
d)
living
35.
Which term best describes two predators living in the same habitat who feed on the same prey?
a)
coexistence
b)
competition
c)
mutualism
36.
A __________ is all the living and nonliving things around you.
a)
Ecosystem
b)
Community
c)
Environment
d)
Population
37.
A _____ is all the populations from an area together.
a)
Population
b)
Individual
c)
Community
d)
Neighborhood
38.
True or False?
A food chain is several food webs that overlap.
A food chain is several food webs that overlap.
a)
True
b)
False
39.
How do plant cells use the energy of sunlight to make glucose (food)?
a)
by absorption in the cell wall
b)
by mitosis in the nucleus
c)
by respiration in the mitochondria
d)
by photosynthesis in the chloroplasts
40.
What are 3 basic needs for a living thing?
a)
Hair brush, ecosystem, and donuts
b)
Food, water, and clothes
c)
Food, air, and electronics
d)
Food, water, and air
41.
What is this called?
a)
Food Web
b)
Food Chain
c)
Abiotic Factors
d)
Biotic Factors
42.
An organism that lives by breaking apart dead organic matter into simpler parts is...
a)
scavenger
b)
consumer
c)
decomposer
d)
carnivore
43.
What might happen if you remove a primary consumer from the ecosystem?
a)
There would be more food for secondary consumers.
b)
The number of primary consumers would increase.
c)
The number of plants would increase.
d)
The number of secondary consumers would increase.
44.
Which of the following best describes the small bird in the food web above?
a)
primary and secondary consumer
b)
secondary and tertiary consumer
c)
primary consumer only
d)
secondary consumer only
45.
Which of the following would be the most likely effect, if there were a sudden increase in the cricket population?
a)
There would be a decrease in the small bird population.
b)
There would be a decrease in the grass/flowers population.
c)
There would be a decrease in the mice population.
d)
There would be an increase in the grass/flowers population.
46.
The arrows in a food chain or web represents what?
a)
They point to the organism that is being eaten.
b)
It shows how sunlight flows within an ecosystem.
c)
They show what direction the energy is flowing between organisms.
d)
They represent how water is transferred within a habitat.
47.
Where does the energy start in this food chain?
a)
Plant
b)
Sun
c)
Deer
d)
Wolf
48.
What is an organism that breaks down & absorbs dead matter so nutrition can be recycled into the soil?
a)
Consumer
b)
Decomposer
c)
Producers
d)
Scavenger
49.
A producer is a (n) ______________.
a)
heterotroph
b)
omnitroph
c)
autotroph
d)
oscartroph
50.
All food chains begin with a ____________.
a)
primary consumer
b)
secondary consumer
c)
producers
d)
scavengers
51.
A consumer is a __________.
a)
heterotroph
b)
autotroph
c)
omnitroph
d)
consumotroph
52.
This type of consumer only feeds on the bodies of dead animals.
a)
Herbivore.
b)
Decomposer.
c)
Carnivore.
d)
Scavenger
53.
The deer, grasshopper, and bird are all examples of which type of consumers on this food pyramid?
a)
decomposers
b)
omnivores
c)
carnivore
d)
herbivore
54.
If there is 1000 Kcal available in the producers in trophic level 1, how much energy is available in the herbivores in trophic level 2?
a)
10 Kcal
b)
1 Kcal
c)
100 Kcal
d)
1000 Kcal
55.
In the energy pyramid here, how much of the energy in each level gets lost as heat or used by the organism for survival?
a)
80%
b)
90%
c)
10%
d)
20%
56.
This diagram shows the amount of energy that moves from one feeding level to another in a food web.
a)
Energy Pyramid
b)
Food Web
c)
Ecosystem
d)
Food Chain
57.
Which of the following is the correct equation for PHOTOSYNTHESIS?
a)
CO2 + light + H2O --> O2 + Sugar
b)
CO2 + sugar + H2O --> O2 + light
c)
O2 + light + H2O --> CO2 + Sugar
d)
CO2 + O2 + H2O --> Light+ Sugar
58.
Which organelle performs PHOTOSYNTHESIS?
a)
Chloroplast
b)
Mitochondria
59.
What is the ultimate ORIGINAL source of energy for living things
a)
Sugar
b)
Sun
c)
Moon
d)
Carbon Dioxide
60.
Which organisms perform Photosynthesis?
a)
Only Autotrophs
b)
Only Heterotrophs
c)
Autotrophs and Heterotrophs
61.
What are the products of photosynthesis?
a)
water and carbon dioxide
b)
oxygen and glucose
c)
oxygen and carbon dioxide
d)
oxygen and water
62.
What are the reactants (what's needed) for photosynthesis?
a)
glucose and oxygen
b)
light, water, and carbon dioxide
63.
What gas is released by plants during photosynthesis?
a)
sulfur
b)
carbon dioxide
c)
oxygen
d)
hydrogen
64.
What are the products (what's made) during photosynthesis?
a)
glucose and oxygen
b)
water, light, and carbon dioxide
65.
What is the energy conversion during photosynthesis?
a)
chemical --> chemical
b)
thermal --> electrical
c)
chemical --> electrical
d)
radiant --> chemical
66.
In which organelle (part of the cell) does photosynthesis take place?
a)
mitochondria
b)
chloroplast
c)
nucleus
d)
cell membrane
67.
Which of the following is an example of an AUTOTROPH?
a)
Appletree
b)
Dog
c)
Mushroom
d)
Human
68.
Which of the following is an example of a HETEROTROPH?
a)
Grass
b)
Algae
c)
Lemon Tree
d)
Bear
69.
What is the pigment in chloroplasts that performs photosynthesis?
a)
Chlorosynthesis
b)
Chlorophyll
c)
ADP
d)
Electron Transport
70.
What is photosynthesis?
a)
The process in which humans eat their food
b)
When a photographer takes a photo.
c)
To get your pictures from the photo lab.
d)
The process in which plants make their food.
71.
If all four plants were watered daily but placed in a closet, receiving no sunlight, what process would NOT occur?
a)
Ingestion of carbon dioxide
b)
Filtration of water through the soil
c)
Photosynthesis
d)
Water absorbtion
72.
Autotroph or heterotroph?
a)
Autotroph
b)
Heterotroph
73.
Autotroph or heterotroph?
a)
Autotroph
b)
Heterotroph
74.
In the food web shown, the smaller bird would be considered....
a)
primary consumer
b)
secondary consumer
c)
tertiary consumer
d)
producer
75.
In this food web, which two organisms could be harmed if the mouse population were to decrease?
a)
Deer and caterpillar
b)
Wolf and snake
c)
Oak and grass
d)
Hawk and songbird
76.
Is it possible for the hawk and the fox to be on the same trophic level (this means producer, primary consumer, secondary etc.)?
a)
Yes, the fox and hawk can be on the same trophic level
b)
No, the fox and hawk can not be on the same level
77.
About how much energy is passed on from one organism to the next in an energy pyramid.
a)
100 percent of all energy gets passed
b)
45 percent of all energy gets passed
c)
10 percent of all energy gets passed
d)
0 percent of all energy gets passed
78.
The position an organism occupies in the food web
a)
Tropic levels
b)
Energy pyramid
c)
Food web
d)
Food chain
79.
There is a large population of rabbits in a field. Lately, a large family of bobcats have moved into the same area. What do you think will happen to the rabbits in this area.
a)
The rabbits will increase.
b)
The rabbits will decrease.
c)
The bobcats will decrease.
d)
The bobcats will increase.
80.
Which species most likely has the largest population?
a)
Herring
b)
Plankton
c)
Shrimp
d)
Shark
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