Chapter 8
Changing the Living World

Find the correct answer for each question.

1. The mammoth went extinct:

   1.   ?    About 3,000 years ago
   2.   ?    About 10,000 years ago
   3.   ?    About 7,0000 years ago

2. Invasive species are:

   1.   ?    Species that have spread into habitats were they are not native.
   2.   ?    Species that have been forced to adapt when their habitats have been changed by human interference.
   3.   ?    Species that have been saved from extinction.

3. Which one of these species is alien to the Baltic Sea region?

   1.   ?    The roe deer
   2.   ?    The Blue mussle (Mytilus edulis)
   3.   ?    The Negobius fish

4. The percentage of red-listed species in Sweden that are threatened by extinction is highest:

   1.   ?    among birds
   2.   ?    among algeae
   3.   ?    among insects

5. A hundred years ago the moose was rare in Sweden but today the situation is different. The number of moose shoot each year is:

   1.   ?    about 35,000
   2.   ?    about 100,000
   3.   ?    about 200,000

6. What is ballast water?

   1.   ?    Rainwater contaminated with sulphur
   2.   ?    Water carried by ships for extra stability
   3.   ?    Freshwater carried by ships for drinking, cooking and washing

7. How many species are extinct each year on Earth?

   1.   ?    about 3,400
   2.   ?    about 88,000
   3.   ?    about 16,000

8. Allemansrätten, the right to public access (”the right for everyone”):

   1.   ?    Is a convention in Sweden, Finland and Norway, which allows the common public the right of access to the land, be it public or privately owned.
   2.   ?    Is a convention which in Sweden allows farmers to protect their property, land or cattle against bear and wolves by hunting.
   3.   ?    Is a convention in Sweden, Finland and Norway to safeguard the public right to see all documents produced and filed by public authorities.

9. Aquaculture:

   1.   ?    Is farming at sea for example seweed-plantations in Sea of Japan.
   2.   ?    Is for example fish farming in the archipelago of Finland.
   3.   ?    Micriobiological composition of water samples.

10. GMO

    1.   ?    Genetically modified organisms are organisms that have been genically modified by man.
    2.   ?    Gender migration organisms denote possibility by certain species to develop transsexual abilities.
    3.   ?    Gender modifed organisms are invertebrates which have changed sex due to emissions of TBT in sea water.