Ecology 1

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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NGSS.MS-LS2-3

NGSS.MS-ESS2-1

Green plants are

• producers
• consumers
• herbivores
• omnivores

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NGSS.MS-LS2-3

NGSS.MS-LS1-6

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

• carbohydrates
• sunlight
• water
• carbon

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NGSS.MS-LS2-3

NGSS.MS-LS1-6

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

• heterotroph
• consumer
• detritivore
• autotroph

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NGSS.MS-LS2-3

NGSS.MS-LS1-6

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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NGSS.MS-LS2-3

symbiotic relationship in which both organisms benefit

• competition
• Mutualism
• nitrogen fixation
• energy pyramid

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NGSS.MS-LS2-2

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

• 10
• 1
• 100
• 2

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NGSS.MS-LS2-3

a relationship between two in which one species, the predator, feeds on the other species, the prey

• chemosynthesis
• predation
• cellular respiration 
• commensalism

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NGSS.MS-LS2-2

NGSS.MS-LS2-4

symbiotic relationship in which one organisms benefits and the other organism is not affected

• invasive (non-native) species
• mutualism 
• nitrogen fixation
• commensalism

Members of a species in a defined area

• Ecosystem
• community
• biodiversity
• population