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Biodiversity
Importance of Biodiversity
Threats to Biodiversity
Preserving/Restoring Biodiversity
Random
100
This occurs when biodiversity is lost.
What is extinction?
100
Food, shelter, medicine and clothing are all examples.
What are direct economic benefits?
100
The primary cause of extinction.
What is habitat loss?
100
This insured that diminishing species would be protected.
What is the Endangered Species Act of 1973?
100
The round goby came to the United States in the ballast of a ship from the baltic sea. This is an example of...
What is an unintentionally introduced species?
200
The type of biodiversity that shows the different traits in one population
What is genetic diversity?
200
Flood protection, wind break, fertile soil and clean water are all examples of this.
What are indirect benefits?
200
Hunting deer faster than they can naturally reproduce.
What is overexploitation?
200
This practice can help preserve biodiversity and make sure that future generations can use the resources
What is sustainable use?
200
These allow animals to move between fragmented habitats.
What are habitat corridors?
300
An African watering hole has more of this than a field in the tundra.
What is species diversity?
300
These aspects of biodiversity are difficult to put a value on.
What are aesthetic/scientific values?
300
This occurs when a link in a food web is removed, affecting the entire ecosystem.
What is habitat disruption?
300
These allow organisms a safe habitat.
What are protected areas?
300

Name two ways humans are dependent on plants

1. eating plants

2. breathing oxygen 

400
Forests, fields, prairies, ponds, estuaries, marshes all exemplify this.
What is ecosystem diversity?
400
The teosinte plant providing pest resistant genes to corn is a direct value of this type of biodiversity.
What is genetic diversity?
400
This increases as a habitat is broken into smaller fragments.
What is the edge effect?
400
If a population is infected with a disease, is genetic diversity positive or negative, and why?

Positive, because it increases the chance that some will be able to resist disease.

400

Name two resources a healthy biosphere provides to people.

Clean water, clean air, fertile soil, food

500
This occurs to biodiversity as we move closer to the tropics.
What is increase?
500
This occurs as pollution moves up through a food chain.
What is biological magnification?
500
Biological magnification, acid rain, and eutrophication are all caused by this.
What is pollution?
500

Name two ways humans are dependent on animal products

1. eating meat

2. wearing wool clothing 

500

Name two services a healthy biosphere provides to people.

decomposition of wastes, protection from floods and droughts, climate regulation