Ecology

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

• carbohydrates
• sunlight
• water
• carbon

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

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-LS1-6

NGSS.MS-LS2-3

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 pyramid

• a population

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NGSS.MS-LS2-2

NGSS.MS-LS2-3

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

which symbiosis is this 

• parasitism 
• mutualism
• commensalism
• nonalism 

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NGSS.MS-LS2-2

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

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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NGSS.MS-LS2-2

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