Ecology Exam Review Practice Quiz

26 Questions  I  By Mbromell on January 8, 2009
This is a practice exam to help prepare you for the Ecology Exam.

  

Question Excerpt

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1.  Which of the following is an abiotic factor in an ecosystem?
A.
B.
C.
D.
2.  In which cycle would you find denitrification?
A.
B.
C.
D.
3.  The ultimate source of energy for all organisms in life is
A.
B.
C.
D.
4.  Which of the following statements is true about matter and energy?
A.
B.
C.
D.
5.  In the following food chain, which organism is the secondary consumer?grass ------> rabbit -------> snake ------> hawk
A.
B.
C.
D.
6.  When the ground has absorbed the maximum amount of precipitation that it can hold, this occurs
A.
B.
C.
D.
7.  In the terrestrial food web above, what would be the effect of a farmer introducing a rat poison in to the ecosystem that is toxic to rats and mice?
A.
B.
C.
D.
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8.  In the nitrogen cycle, the term "denitrification" refers to
A.
B.
C.
D.
9.  Lichen is a symbiotic decomposer that attachers itself to trees and slowly breaks them down. They obtain nutrients from the tree, allowing them to survive and reproduce. What type of relationship is this?
A.
B.
C.
D.
10.  An area was recently destroyed by a raging wildfire. Which of the following events would allow secondary succession to take place?
A.
B.
C.
D.
11.  Succession where glaciers melt and expose new rock is called
A.
B.
C.
12.  In the above food chain, the snake is an example of a
A.
B.
C.
D.
13.  Which of the following cannot be recycled?
A.
B.
C.
D.
14.  All of the following are ways that we can protect the biosphere except
A.
B.
C.
D.
15.  An animal that only eats the flesh of another animal is called a
A.
B.
C.
D.
16.  Mushrooms and other fungi are responsible for breaking down dead organic matter. In the ecosystem, they are called
A.
B.
C.
D.
17.  The ecological role of an organism within an ecosystem is called its
A.
B.
C.
D.
18.  Sea anemones contain a venom that is used to sting and paralyze their prey. The clownfish contains an enzyme in their scales that makes them immune to the venom. This allows them to freely live in the sea anemone without being harmed. This is an example of what type of relationship?
A.
B.
C.
D.
19.  On what trophic level would you find organisms that use the sun's energy directly to make their own food?
A.
B.
C.
D.
20.  The amount of energy that is passed from one organism to the next in a food chain is
A.
B.
C.
D.
21.  The above image represents what type of relationship?
A.
B.
C.
D.
22.  Using the food web above, create a food chain. Label the producer, primary consumer, secondary consumer and tertiary consumer.  What level is directly affected by the sun? Explain the result of removing one organism from the food web.
23.  Which of the following is considered the main source of excess carbon dioxide in the atmosphere leading to the destruction of the ozone layer?
A.
B.
C.
D.
24.  The term "nitrogen fixation" refers to
A.
B.
C.
D.
25.  The release of water vapor from the leaves of trees is called
A.
B.
C.
D.
26.  Which of the following organisms is an autotroph?
A.
B.
C.
D.
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