Name: ______________________ Class: _________________ Date: _________
Chap 2 Ecology Review
V2
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ID: A
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Multiple Choice
Identify the choice that best completes the statement or answers the question.
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1. What is the largest level of organization from the choices below?
A. ecosystem
C. population
B. organism
D. community
2. What is the smallest level of organization from the choices below?
A. population
C. ecosystem
B. organism
D. community
3. Which of the following levels of organization includes abiotic factors?
A. population
C. ecosystem
B. organism
D. community
4. Which of the following is considered a biotic factor?
A. temperature
C. precipitation
B. sunlight
D. plant life
5. A frog has ample food to survive. However, because this species lives in
find. In this case, water for the frog would be considered
A. a biotic factor
C. an abiotic factor
B. a limiting factor
D. a wierd factor
6. What level of organization is represented by a herd of cattle?
A. organism
C. community
B. population
D. ecosystem
7. Which of the following statements about plants is false?
A. They are detrivores.
B. They can photosynthesize.
C. They are producers.
D. They are autotrophs.
8. Which of the following would not be considered a producer?
A. pine
B. grass
C. worms
D.
9. Primary consumers can also be called
A. carnivores
B. herbivores
C. omnivores
D.
10. Nature’s recyclers are also called
A. omnivores
B. detrivores
C. producers
D.
11. In an interaction between a bear and a salmon,
A. the bear is the omnivore, the salmon is the producer
B. the bear is the predator, the salmon is the prey
C. the bear is the sensai, the salmon is the student
D. the bear is the consumer, the salmon is the parasite
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the desert, water is difficult to
algae
autotrophs
decomposers
Name: ______________________
ID: A
Figure 2.1 Simple food web
____ 12. In Figure 2.1, which organism in the food chain is clearly an omnivore?
A. mouse
B. cricket
C. snake
D. hawk
____ 13. In Figure 2.1, which organism in the food chain is in the third trophic level?
A. grass
B. cricket
C. snake
D. hawk
____ 14. A one-way relationship in which one organism benefits at the expense of another organism is called
A. mutualism
C. commensalism
B. parasitism
D. symbiosis
____ 15. A relationship between two organisms in which both benefit is called
A. mutualism
C. commensalism
B. parasitism
D. symbiosis
____ 16. A relationship between two organisms in which only one benefits, but the other is not harmed is called
A. mutualism
C. commensalism
B. parasitism
D. symbiosis
____ 17. Which trophic level do algae belong to?
A. first trophic level
C. third trophic level
B. second trophic level
D. fourth trophic level
Figure 2.2 Food pyramid
____ 18. In Figure 2.2, at which trophic level would autotrophs be found?
A. 1
B. 2
C. 3
2
D. 4
Name: ______________________
ID: A
____ 19. In Figure 2.2, which trophic level typically contains the greatest amount of energy?
A. 1
B. 2
C. 3
D. 4
____ 20. Imagine the following food chain: Grass → Rabbit → Fox. What will happen to the prey population if
the predators are removed?
A. The number of foxes will increase.
B. The number of rabbits will increase.
C. The number of rabbits will decrease.
D. The amount of grass will increase.
Short Answer (Honours only)
1. Why can most ecosystems only support 3-4 trophic levels? (1 mark)
Essay (Honours only)
1. What is symbiosis? Name three types of symbiotic relationships, and describe the similarities and
differences between them. Include examples in your description of each type. (4 marks)
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