Ecosystems

Organisms that make up the living part of an ecosystem.

• abiotic
• biotic factors
• ecology
• ecosystems

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Which is a biotic factor?

• sunlight
• air 
• bacteria
• all of the above

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Decomposers get their food by __________.

• making it themselves
• eating live organisms
• using dead organisms
• eating themselves

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A __________ includes all living and non-living things in an environment. 

• population
• niche
• abitotic
• ecosystem

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_______ are consumers that eat only meat.

• Herbivore
• Omnivore
• Carnivore

Which organism make their own food through the process of photosynthesis? 

• decomposer
• consumer
• herbivore
• producer 

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What are interconnected food chains called?

• consumers
• predators
• food web

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If the population of prey increases, the population of predators will ________because of the availability of food.

• decrease
• stay the same
• increase

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What would most likely happen if an ecosystem no longer received sunlight?

• The number of herbivores would increase
• The number of plants would increase
• all organisms would adapt
• All living organisms would eventually die

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How does energy enter an ecosystem? 

• sunlight
• soil 
• animals 
• invasive species 

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