8.11A

The gradual process by which ecosystems change and develop over time. Nothing remains the same and habitats are constantly changing.

• Ecological Succession
• Ecology Success
• Ecological Change
• Ecological Stewardship

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What is an ecosystem? 

• producing food from sunlight
• animals that live in certain areas
• living and nonliving things that interact in an area
• a person who studies an environment

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All the members of one species that live within an area of an ecosystem is a?

• population
• community
• niche

Three different bird species live in the same tree, but competition rarely occurs.  How can this be explained?

• occupy different niches
• eat the same food
• have a limited supply of food
• live in the same part of the tree

When the hare population increases, what happened to the lynx population?

• It rose. 
• It fell. 
• It stayed the same.

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

• alive
• biotic 
• abiotic
• living

In an ocean ecosystem, which biotic factors would effect a population of fish negatively? 

• Too cold of temperatures 
• Too many large predators 
• Too much water 
• Too many prey 

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This graph shows ....

• When one population inceases, the other decreases. 
• When one population decreases, the other inceases. 
• When one population increases, the other increases instantly. 
• When one population increases, the other increases shortly after. 

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Salting highways in the winter causes population of plants to die off that grow near the road. This is an example of: 

• A biotic factor influencing an abiotic factor 
• An abiotic factor influencing a biotic factor  
• Both factors influencing both factors 
• Neither factor influencing 

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This graph shows.... 

• When the biotic factor increase the population decreases 
• The biotic factor constantly decreasing 
• The abiotic factor constantly increasing 
• The abiotic increases causing the population to decrease.

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