Ecology

A pond ecosystem is shown in the diagram below. Which statement describes an interaction that helps maintain the dynamic equilibrium of this ecosystem?
Which statement describes an interaction that helps maintain the dynamic equilibrium of this ecosystem?

• The frogs make energy available to this ecosystem through the process of photosynthesis.
• The algae directly provide food for both the rotifers and the catfish.
• The green-backed heron provides energy for the mosquito larvae.
• The catfish population helps control the populations of water boatman and waterfleas.

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NGSS.MS-LS2-1

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A food chain is illustrated below:
The arrows represented most likely indicate

• A. Energy released from metabolism into the environment as heat.
• B. Oxygen released from metabolism produced by cellular respiration.
• C. The absorption of energy from the environment that has been created.
• D. The transport of glucose away from the organism through photosynthesis.

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

Organisms that breaks down and absorbs nutrients from dead organisms 

• consumer
• trophic level
• decomposer
• species

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NGSS.MS-LS2-3

Non-living factor that affects an ecosystem

• biotic factor
• abiotic factor
• food chain 
• biome

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NGSS.MS-LS2-3

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Where an organism lives

• habitat
• niche 
• heterotrogh
• biosphere

Members of a species in a defined area

• Ecosystem
• community
• biodiversity
• population

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NGSS.MS-LS4-4

Study of interactions between organisms and their environment 

• niche
• community 
• ecology
• ecosystem

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NGSS.MS-LS2-2

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

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

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

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NGSS.MS-LS2-4

diagram that shows the energy available to each trophic level in an ecosystem; 10% is passed on to upper levels, the rest is lost as heat

• succession 
• cellular respiration
• energy pyramid
• biochemical cycle

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NGSS.MS-LS2-3