Ecosystems

What is an ecosystem?

• A group of animals that are the same species.
• Soil, water, air and sunlight
• All the living and non living things that interact in an area.
• North America

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An animal that hunts other animals for food is called a ___________________.

• Villian
• Predator
• Prey
• Fred

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Below is an example of a simple food chain.

Acorn → Squirrel → Fox → Mountain Lion 

What will most likely happen if squirrels are removed from the food chain?

• The fox will eat acorns
• The fox population will decrease
• The trees will produce fewer acorns.
• The mountain lion population will increase

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A rainforest area is experiencing a severe drought. As a consequence, the insect population has decreased. What will the insect-eating birds most likely do as a result of the drought?

• stop searching for food until it begins to rain
• begin reproducing to increase population
• move to a new area to find food
• start the process of hibernation

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In a forest ecosystem, a food chain might look like this:
green plants → rabbit → fox → panther

If the green plants are destroyed in a forest fire, which short-term effect will this have on the organisms in this food chain?

• There would be fewer rabbits for the foxes to eat. 
• The panthers would have to begin to eat green plants.
• There would be an increase in the fox population
• There would be more green plants for the rabbits to eat

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A system made up of organisms interacting with one another

• biology
• abiotic
• biotic
• ecosystem

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Decomposers get their food by __________.

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

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The role of plants in a food web is 

• consumer
• decomposer
• predator
• producer

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Choose the list that BEST describes what plants and animals need to survive.

• soil, water, sunlight, food, air
• air, water, sunlight, and a source of food for energy
• food, air, oxygen, space, and water
• environment, habitat, space and sunlight

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How do plants get their source of energy (food)?

• Plants get their food from the soil and water
• Plants use the energy from the sun, air, and water to make their food
• Plants get their food from minerals
• Plants get their food from the decaying plants and animals

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