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What is Ecology Review

True/False
Indicate whether the statement is true or false.  Please clearly write your answer in the space provided in the left margin.  If you wish to change your answer, please cross it out and write your final answer next to it.  Answers that do not clearly indicate a choice will be marked incorrect.
 

 1. 
An example of a defined population is 9 woodchucks living in 5 acre parcel of land behind the high school.
 

 2. 
The scientific study of interactions between organisms and their environments is called ecology.
 

 3. 
A group of similar looking animals that are able successfully interbreed and produce fertile offspring is called an ecosystem.
 

 4. 
An organisms role in a community is called its habitat.
 

 5. 
A population is a all the organisms of a single species that lives in the same place and the same time.
 

 6. 
An organism that gets its food by eating dead or decaying organisms is called a decomposer.
 

 7. 
Autotrophs are always at the beginning of a food chain.
 

 8. 
A group of interacting communities and the environment surrounding it  is called the biosphere.
 

 9. 
The parts of the hydrosphere, the geosphere and the atmosphere that support life are together are called the earth..
 

 10. 
A complex scientific model that shows all the possible feeding relationships in a community is called a food chain.
 

 11. 
The arrows in a food chain always points toward the organism that is being eaten.
 

 12. 
A simple model that shows how matter and energy is passed from one organism to another in an ecosystem is called a food chain.
 

 13. 
An organism that is able to make its own food is called an autotroph or a consumer.
 

 14. 
A group of interacting populations that live in the same place at the same time is called a community.
 

 15. 
Predation is a relationship between two organism in which one organism benefits by hunting, killing, and eating another organism.
 

 16. 
Mutualism is a relationship in which both organisms benefit.
 

Multiple Choice
Identify the choice that best completes the statement or answers the question.  Please clearly write your answer in the space provided in the left margin.  If you wish to change your answer, please cross it out and write your final answer next to it.  Answers that do not clearly indicate a choice will be marked incorrect.
 

 17. 
A consumer that eats only plants is called a(n):
a.
carnivore
c.
herbivore
b.
autotroph
d.
omnivore
 
 
Use the following food web to answer the next questions.
nar001-1.jpg
 

 18. 
The pathway of plants -> mice -> fox is called a:
a.
predation
c.
food chain
b.
none of these
d.
food web
 

 19. 
How many herbivores are present in the food web?
a.
5
c.
3
b.
2
d.
4
 

 20. 
Which of the organisms below is a secondary consumer?
a.
fox
c.
all of these
b.
insectivorous birds
d.
hawk
 

 21. 
How many omnivores are present in the food web?
a.
5
c.
2
b.
4
d.
0
 

 22. 
How many carnivores are present in the food web?
a.
0
c.
9
b.
5
d.
7
 

 23. 
Which organisms are responsible for changing the energy in sunlight into chemical energy that is able to be used by living organism are the:
a.
hawks and owls
c.
spiders
b.
herbivorous insects
d.
plants
 

 24. 
Which of the following is a primary consumer?
a.
all of these
c.
toads
b.
insectivorous birds
d.
squirrels
 

 25. 
Which of the following organisms are always at the bottom of food pyramids?
a.
Secondary consumers
c.
Primary consumers
b.
Top level consumers
d.
Producers
 

 26. 
An organism that eats only meat is called a(n)
a.
omnivore
c.
herbivore
b.
carnivore
d.
autotroph
 

 27. 
A consumer that eats both plants and animals is called a(n)
a.
omnivore
c.
autotroph
b.
herbivore
d.
carnivore
 

 28. 
An organism that eats dead organisms that it does not kill is called a:
a.
predator
c.
hunter
b.
scavenger
d.
prey
 

 29. 
An organism that can not make its own food and must consume other organisms is called a:
a.
Decomposer.
c.
Omnivore
b.
Autotroph
d.
Heterotroph
 



 
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