WorksheetsFood Chains
Total questions: 39
Worksheet time: 26mins
Name
Class
Date
1.
This is a close relationship that exists when two are more species live together.
a)
Symbiosis
b)
Predation
c)
Mutualism
d)
Commensalism
2.
A symbiotic relationship in which both organisms benefit.
a)
Commensalism
b)
Predation
c)
Mutualism
d)
Parasitism
3.
A symbiosis in which one organism benefits and the other is harmed.
a)
Predation
b)
Parasitism
c)
Commensalism
d)
Mutualism
4.
Name this symbiosis:
a)
Mutualism
b)
Commensalism
c)
Parasitism
d)
Predation
5.
Name this symbiosis:
a)
Mutualism
b)
Commensalism
c)
Parasitism
d)
Predation
6.
Name this symbiosis:
a)
Mutualism
b)
Commensalism
c)
Parasitism
d)
Predation
7.
Name this symbiosis:
a)
Mutualism
b)
Parasitism
c)
Commensalism
d)
Predation
8.
Name this symbiosis:
a)
Mutualism
b)
Commensalism
c)
Parasitism
d)
Predation
9.
Autotroph or heterotroph?
a)
Autotroph
b)
Heterotroph
10.
Autotroph or Heterotroph?
a)
Autotroph
b)
Heterotroph
11.
Autotroph or Heterotroph?
a)
Autotroph
b)
Heterotroph
12.
Autotroph or heterotroph?
a)
Autotroph
b)
Heterotroph
13.
Autotroph or Heterotroph?
a)
Autotroph
b)
Heterotroph
14.
These organisms eat fragments of dead matter in an ecosystem.
a)
carnivores
b)
omnivores
c)
herbivores
d)
detritovores
15.
These organisms only eat meat.
a)
Carnivores
b)
Omnivores
c)
Herbivores
d)
Detritovores
16.
Autotrophs make up the _______ level in all ecosystems.
a)
First
b)
Second
c)
Third
d)
Fourth
17.
This is a simple model that shows the flow of energy through an ecosystem.
a)
Food chain
b)
Food line
c)
Food web
d)
Food group
18.
This is a model representing the many interconnected food chains and and pathways in which energy flows in an ecosystem.
a)
Food chain
b)
Food line
c)
Food web
d)
Food group
19.
The energy at each trophic level in the pryamid of energy decreases by a factor of ____.
a)
10
b)
1
c)
100
d)
2
20.
This is the exchange of all matter and nutrients through the biosphere.
a)
water cycle
b)
carbon cycle
c)
nitrogen cycle
d)
biogeochemical cycle
21.
Anything that takes up space and has mass.
a)
Matter
b)
Mass
c)
Energy
d)
Light
22.
This is a chemical substance that an organism must obtain from its environment to sustain life and to undergo life processes.
a)
Matter
b)
H2O
c)
Nutrients
d)
Elements
23.
The process of capture and conversion of nitrogen into a form that is usable by plants.
a)
Denitrification
b)
Nitrogen fixation
c)
Phosphorus fixation
d)
Carbon fixation
24.
This is when some soil bacteria convert fixed nitrogen compounds back into nitrogen gas and return it to the atmosphere.
a)
Nitrogen fixation
b)
Denitrification
c)
Phosphorus fixation
d)
Carbon fixation
25.
What is predation?
a)
Organism 1 eats Organism 2 for survival
b)
When two organisms benefit
c)
When both organisms don't benefit
26.
What Is Competition?
a)
Organisms struggle to survive in a habitat with limited resources
b)
Prey
c)
Predator
27.
What Is A Predator?
a)
Neither
b)
A Organism That Is Killed
c)
An Organism That Kills
28.
What Is Predation?
a)
Life and Death
b)
Organism Killer
c)
One Organism Kills and The Other Dies
29.
What is Symbiosis?
a)
One Organism Benefits and The Other Dies
b)
A Relationship Where A Organism Is Either Helped or Harmed
c)
Where A Parasite Lives
30.
What Is Commensalism?
a)
Both Organisms Don't Benefit
b)
Both Organisms Benefit
c)
One Species Is Helped and The Other Is Neither Helped nor Harmed
31.
What Is Mutualism?
a)
Both Organisms Benefit
b)
Both Organisms Don't Benefit
32.
What Is Parasitism?
a)
A Host
b)
A Disgusting Organism Infested With Disease
c)
A Gross Organism Inside A Normal Organism
33.
What Is A Parasite?
a)
A Gross Organism Infested With Disease
b)
A Organism Getting Sick From Something
34.
which symbiosis is this
a)
parasitism
b)
mutualism
c)
commensalism
d)
nonalism
35.
Why don't most parasites kill their hosts immediately?
a)
The host benefits by keeping the parasites alive.
b)
The host is able to fight off the invading parasites.
c)
The parasites help the host before killing it.
d)
The parasites would no longer have a food supply if the host died.
36.
Lichens are a combination of algae and fungus that grow on rocks. What kind of symbiosis is this?
a)
Mutualism
b)
Parasitism
c)
Predation
d)
Commensalism
37.
What is Symbiosis
a)
A relationship between two organisms of different species where one benefits and the other is harmed
b)
A relationship between two organisms of different species where one benefits and the other is neither harmed nor benefited
c)
A relationship between two species in which both species benefit
d)
A relationship in which two different organisms live in close association with each other
38.
What is Parasitism?
a)
A relationship between two species in which both species benefit
b)
A relationship between two organisms of different species where one benefits and the other is neither harmed nor benefited
c)
A relationship between two organisms of different species where one benefits and the other is harmed
d)
An animal that hunts other animals for food
39.
What is Symbiosis
a)
A relationship between two organisms of different species where one benefits and the other is harmed
b)
A relationship between two organisms of different species where one benefits and the other is neither harmed nor benefited
c)
A relationship between two species in which both species benefit
d)
A relationship in which two different organisms live in close association with each other
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