Book E chapt 5 science test conserving life
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- These 3 things can affect biodiversity
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Air pollution
Water pollution
Land pollution - What is a divided habitat?
- An aea divided by roads, farms, or cities
- A species that is likely to become endangered in the near future is considered .....
- Threatened
- The rate of extinction seems to be increasing. who is probably the cause?
- Most caused by man.
- Biodiversity _________ as you move closer to the equator.
- Increases
- What is the most common measure of biodiversity?
- The number of species that live in an area
- What is the major reason that species become threatened, endangered, or extinct?
- Habitat loss
- Biodiversity can help improve what?
- Crops
- A species that once lived on Earth but died out is called.....
- Extinct
- What are some reasons for not keeping threatened or endangered animals in captivity?
-
Food can be expensive.
Animals can lose their wild behavior.
Finding enough room can be costly. - A species that is likely to become extinct is called.....
- Endangered
- What is habitat restoration?
- The process of bringing a habitat back to a healthy condition
- What is one problem that an introduced species can cause?
- It can crowd out native species.
- These people develop strategies to safeguard threatened and endangeed species.
- Conservation biologists
- These move into an ecosystem because of human action.
- Introduced species
- This refers to the variety of life in an ecosystem
- Biodiversity
- These are an extinct species
- Passenger pigeons
- This could cause the polar ice caps to melt causing floods.
- Global warming
- This was passed to help endangered species and their environment.
- The U.S. Endangered Secies Act of 1973
- Bringing a damaged habitat back to a healthy condition is called this.
- Habitat restoration
- Does the rate of extinction seem to be rising or decreasing?
- Rising
- These are the original species in an ecosystem.
- Native species
- A thinning of a layer of the atmospehere that absorbs radiation is called .....
- Ozone depletion
- These have been established to store the seeds of endangered plants.
- Seed banks
- What are wildlife corridors?
- areas that allow animals to move from one preserve to another without having to cross roads
- Why is conservation biology important?
-
1) It helps save a species' habitat.
2) It helps protect a species from harm - Why are many species today in danger of extinction?
-
1) Their habitat is being destroyed.
2) There is more pollution which can
kill organisms.
3) Overhunting