Ecology Review Game

The diagram below shows the cycling of nutrients in an ecosystem.
The removal of which of the following groups would cause an immediate decrease in the amount of energy flowing through the system?

• Producers
• Consumers
• Decomposers
• Inorganic nutrients

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Green plants are

• producers
• consumers
• herbivores
• omnivores

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What is the original source of almost all energy in most ecosystems?

• carbohydrates
• sunlight
• water
• carbon

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An organism that produces its own food supply from inorganic compounds is called a(an)

• heterotroph
• consumer
• detritivore
• autotroph

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What is an ecological model of the relationships that form a network of complex interactions among organisms in a community from producers to decomposers?

• food web

• an ecosystem

• food chain

• a population

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What is the term for each step in the transfer of energy and matter within a biological community?

• energy path
• food web
• trophic level
• food pyramid

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which symbiosis is this 

• parasitism 
• mutualism
• commensalism
• nonalism 

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symbiotic relationship in which both organisms benefit

• competition
• Mutualism
• nitrogen fixation
• energy pyramid

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The energy at each trophic level in the pryamid of energy decreases by a factor of ____.

• 10
• 1
• 100
• 2

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What does a food web represent?

• All connections of energy flow throughout all organisms in a habitat.
• The specific ways that mutualism is carried out.
• A single pathway or energy flow between organisms. 
• How carnivores get their food. 

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