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27 Cards in this Set
- Front
- Back
These 3 things can affect biodiversity
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Air pollution
Water pollution Land pollution |
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What is a divided habitat?
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An aea divided by roads, farms, or cities
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A species that is likely to become endangered in the near future is considered .....
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Threatened
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The rate of extinction seems to be increasing. who is probably the cause?
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Most caused by man.
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Biodiversity _________ as you move closer to the equator.
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Increases
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What is the most common measure of biodiversity?
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The number of species that live in an area
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What is the major reason that species become threatened, endangered, or extinct?
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Habitat loss
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Biodiversity can help improve what?
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Crops
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A species that once lived on Earth but died out is called.....
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Extinct
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What are some reasons for not keeping threatened or endangered animals in captivity?
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Food can be expensive.
Animals can lose their wild behavior. Finding enough room can be costly. |
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A species that is likely to become extinct is called.....
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Endangered
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What is habitat restoration?
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The process of bringing a habitat back to a healthy condition
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What is one problem that an introduced species can cause?
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It can crowd out native species.
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These people develop strategies to safeguard threatened and endangeed species.
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Conservation biologists
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These move into an ecosystem because of human action.
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Introduced species
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This refers to the variety of life in an ecosystem
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Biodiversity
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These are an extinct species
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Passenger pigeons
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This could cause the polar ice caps to melt causing floods.
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Global warming
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This was passed to help endangered species and their environment.
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The U.S. Endangered Secies Act of 1973
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Bringing a damaged habitat back to a healthy condition is called this.
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Habitat restoration
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Does the rate of extinction seem to be rising or decreasing?
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Rising
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These are the original species in an ecosystem.
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Native species
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A thinning of a layer of the atmospehere that absorbs radiation is called .....
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Ozone depletion
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These have been established to store the seeds of endangered plants.
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Seed banks
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What are wildlife corridors?
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areas that allow animals to move from one preserve to another without having to cross roads
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Why is conservation biology important?
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1) It helps save a species' habitat.
2) It helps protect a species from harm |
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Why are many species today in danger of extinction?
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1) Their habitat is being destroyed.
2) There is more pollution which can kill organisms. 3) Overhunting |