Environmental Science - Chapter 4

Which is classified as an ecosystem?

• a bumble bee
• a bee hive
• bees, grass, trees, birds, frogs
• bees, grass, frogs, water, sunlight

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Which of these is the basic unit of life in all living things?

• tissue
• organ
• cell
• atom

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If you see cardinals, blue jays and owls in your back yard, this is an example of a 

• community
• population
• ecosystem
• species

What are the living and nonliving things in an environment or area?

• predator

• producer

• ecosystem

• abiotic factor

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Breaks down and feeds on the remains of other organisms

• decomposer

• consumer

• producer

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NON-living things found in an ecosystem

• biotic

• abiotc

• habitat

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LIVING things in an ecosystem

• biotic

• abiotic

• ecosystem

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Choose the abiotic factor.

• sunflower

• dog

• cat

• table

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Which of the following are factors that could cause extinction?

• Destruction of animals' habitat

• Climate change

• Pollution

• Increased human population (more people)

• ALL of the above could cause extinction

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What is scarcity and how could it affect an ecosystem?

• Too many animals or plants in an area can cause the ecosystem to fail.

• Too many animals or plants in an area can cause the animals to be too fat.

• Too few animals or plants in an area can cause other animals to go hungry or die.

• Too few animals or plants in an area can cause pollution.

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