Population Dynamics and Interactions in Communities

Temperature, light, air, water, and soil are all  _____  parts of the environment

• alive
• biotic 
• abiotic
• living

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NGSS.MS-LS2-3

Is a fern an abiotic or biotic factor? 

• abiotic
• biotic

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A snake is eaten by a hawk. The hawk is the _______.

• prey
• parasite
• predator
• all of these

When there is a lack of resources such as food, water, sunlight, shelter, and space this is often called __________.

• limiting factors
• wet
• messy
• found in rocks

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NGSS.MS-LS2-1

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If the population of a certain predator increases, there is often _______ its prey

• a decrease the population of
• an increase of the population of 
• great news for its prey of
• no  impact found on

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If there is more food than usual in an ecosystem, then...

• Populations will stay the same
• Populations will decrease
• Populations will increase

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NGSS.MS-LS2-1

NGSS.MS-LS2-4

Any thing or organism that regulates the size of a population of another organism is known as __________.

• a limiting measure
• a limiting factor
• factorization
• materialization of precipitation

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Which symbiosis is represented in the picture? 

• parasitism 
• mutualism
• commensalism
• nonalism 

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NGSS.MS-LS2-2

A symbiotic relationship in which both organisms benefit:

• Competition.
• Mutualism.
• Commensalism.
• Parasitism.

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NGSS.MS-LS2-2

A relationship in which one organism benefits and the other is unaffected.

• mutualism
• parisitism
• symbiosis
• commensalism