Extra Reading Comprehension Activities 
(Unit 6, page 70)
 
Comprehension Questions
A.  Answer the questions, according to information in the article.

1. How is biodiversity being reduced?
 
2. What event do many scientists compare with the current wave of species extinctions?
 
3. What are three species that are clinging to survival?
 
4. What may be one cause of the decline in the mountain gorilla population?
 
5. Why is extinction truly irreversible?
 
6. What is WWF promoting to help save the polar bear’s habitat?
 
7. What happens if one species in an ecosystem disappears?
 
Critical  Thinking Questions

B.     Find the following terms in the article. Using context, write a definition of what each term means
according to the article. 
 
1. natural inheritance:
 
 
2. umbrella species:
 
 
 Summit  1    Unit  6
Copyright © 2006 by Pearson Education. Permission granted to reproduce for classroom use.
 

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