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Final Exam Review # 5
Test Description: This is the fifth installment of final exam review questions.
Instructions: Answer all questions to get your test result.
1) What two processes work to maintain stable levels of oxygen and carbon dioxide in the atmosphere?
A
Photosynthesis and respiration
B
Food chains and natural selection
C
Acid rain and pesticides
D
Metabolism and pollution
2) Arrows within a food chain or food web represent
A
Consumers
B
Producers
C
Transfer of energy
D
Sunshine
3) What type of organisms recycle materials by the breakdown of organic molecules from dead organisms?
A
Decomposers
B
Producers
C
Predators
D
Prey
4) What type of organism is at the beginning of a food chain?
A
Carnivore
B
Herbivore
C
Producer
D
Consumer
5) What type of organism should all food chains end with?
A
Herbivore
B
Plant
C
Producer
D
Decomposer
6) Approximately what percentage of energy is transferred from one level of a food chain to the next?
A
1
B
2
C
5
D
10
7) What shape is used to represent the amount of energy available or the number of individuals that exist at each level of a food chain?
A
Pyramid
B
Sphere
C
Rectangle
D
Trapezoid
8) What type of organisms would be affected if the number of herbivores in a food chain were decreased?
A
Only carnivores
B
No other organisms would be influenced
C
Only producers
D
Producers and carnivores
9) In what type of symbiotic relationship is one organism harmed while the other organism benefits?
A
Commensalistic
B
Mitotic
C
Mutualistic
D
Parasitic
10) What term describes the number of different types of organisms that live in a particular area is?
A
Natural selection
B
Biodiversity
C
Population
D
Homeostasis
*select an answer for all questions
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