Unit A: Topic 4 Human Activity affects Biological Diversity

onwardhaggardBiotechnology

Dec 12, 2012 (4 years and 11 months ago)

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Science 9|2012

Bly|Dhaliwal

1


Name: _______________


Date: _______________

Unit A: Topic 4 Human Activity affects Biological Diversity

4.1 Reduction of Biological
Diversity

1. Define the following causes for reductions of biological diversity on Earth. Give an example


of at
-
risk species found in Alberta for each.



Extirpated: ______________________________________________________________

_______________________
_________________________________________________



Endangered: _____________________________________________________________

________________________________________________________________________



Threatened: _______________________________________________
______________

________________________________________________________________________



Special Concern: __________________________________________________________

________________________________________________________________________

2.
Natural causes f
or extinction and expiration are:



_______________________________



_______________________________



_______________________________



_______________________________

3. Human causes for extinction and expiration are:



________________________________



_________
_______________________



________________________________

4. What are the effects of extinction and expiration?
______________________________________________________________________________
_____________________________________________________________
_________________





Science 9|2012

Bly|Dhaliwal

2


4.2 Selecting Desirable Traits

1.
Define the following terms:



Artificial Selection: ________________________________________________________

_______________________________________________________________________



Biotechnology:
__________________________________________________________

_______________________________________________________________________



Cloning: ________________________________________________________________

___________________________________________________
____________________



Artificial Insemination: ____________________________________________________

_______________________________________________________________________



In vi
tro Fertilization: ______________________________________________________

______
_________________________________________________________________



Genetic Engineering: _____________________________________________________

______________________________________________________________________

2. What are some of the risks of biotechnol
ogy in:



Animals: ______________________________________________________________

______________________________________________________________________



Plants:_________________________________________________________________

________________________________
______________________________________

4.3 Reducing Our Impact on Biological Diversity

1. List FIVE strategies used to conserve biological diversity.



______________________________________________



______________________________________________



____________
__________________________________



______________________________________________



______________________________________________

2. Compare and contrast In
-
situ conservation and Ex
-
situ conservation.


__________________________________________________
__________________________


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