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What are three different kinds of symbiosis?

Mutualism:A relationship in which both species are mutually benefited. Example:Bees and flowers

Commensalism:A relationship in which one organism benefits but the other is neither helped nor harmed. Example: Tree frog on plants.

Parasitism:A relationship between the two living species in which one organism is benefitted at the expense of the other. Example: Fleas

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Why are zebra mussels a problem in the Greak Lakes area?

They filter out algae that native species need for food and they attach to--and incapacitate--native mussels.

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Who are plants able to begin growing in an area after a forest fire?

Some plants have the ability to sprout when the above ground portion has been burned.

Grasses and other herbaceous plants grow back first due to the seeds still in the soil.

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How is a population different from a community?

A population is a group of the same species living in the same area. A community is a group of different species living in the same area.

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Many people are moving into deserts. Who might this movement affect the ecosystem of the rivers flow through this deserts?

Wildlife that has lived there for thousands of years could be danger of dying out due to threats like urban sprawl, cattle grazing, mining, dam building, and off-road ...

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Your class has been asked to help improve the natural enviroment of your community. What are three things that you and your class could do?

-Reduce, reuse, and recycle

-Save electricity

-Conserve water

-Choose sustainable

-Use long-lasting light bulbs

-Volunteer for cleanups in your community