The Hierarchical Organization of Organisms, Populations, and Communities within an Ecosystem

After observing various populations within a forest ecosystem, what is the next level of hierarchy that these populations would collectively form?

• Species

• Organisms

• Communities

• Environments

Why is understanding the hierarchical organization of ecosystems important in managing a national park?

• To appreciate the delicate balance within ecosystems

• To protect the environment

• To identify the most important species for an ecosystem's health

• all of the above

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NGSS.MS-LS2-1

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What does the term 'hierarchy' refer to in the context of an ecological system?

• A group of deer living in a forest clearing

• The classification of organisms based on their roles and interactions within an ecosystem

• A pack of wolves roaming through a national park

• A coral reef system with various species of fish, coral, and marine life

What is the correct order of hierarchical organization within an ecosystem from smallest to largest?

• Community, Population, Organism

• Organism, Community, Population

• Population, Organism, Community

• Organism, Population, Community

Identify the correct level or organization: the ​sea turtles plus all of the other fish, plants, and coral are a ​ ​ ​ ​ (a)  

• community

• ecosystem

• biosphere

• biome

• species

• population

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NGSS.MS-LS2-1

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Identify the correct level or organization: the ​sea turtle, fish, and coral reef plus the water, oxygen, carbon dioxide, and sunlight are an ​ ​ ​ ​ ​ (a)   ​

• ecosystem

• biosphere

• biome

• species

• population

• community

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NGSS.MS-LS2-1

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Identify the correct level or organization: all of the the ​sea turtles living in the coral reef are a ​ ​ ​ ​ ​ ​ (a)   ​ ​

• biosphere

• biome

• species

• population

• community

• ecosystem

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Label the levels of organization:

b

a

c

d

e

Biosphere

Population

Community

Ecosystem

Species

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What level of ecological organization does the bird represent? (a)  

• Organism

• Population

• Community

• Ecosystem

List the 5 levels of ecological organization in order from least to greatest.

1.​ ​ ​ ​ (a)  

2.​ (b)  

3.​ (c)  

4.​ (d)  

5.​ (e)  

• Organism

• Population

• Community

• Ecosystem

• Biosphere

• Primary succession

• Population

• Community

• Secondary succession

• Niche