2. A B Which do you like better?

3. AB

4. AB

6. Bio = Bio diversity What does “ Bio ” mean?

7. Diversity = Variety What does “ Diversity ” mean?

8.  The variety of all forms of life and genes in an ecosystem, biome or planet.  Copy this definition on page 1 of your notebook.

9.  Justify your answer.

11. Vertebrates Amphibians6,199 Birds9,956 Fish30,000 Mammals5,416 Reptiles8,240 Subtotal59,811

12. Invertebrates Insects950,000 Mollusks81,000 Crustaceans40,000 Corals2,175 Others130,200 Subtotal1,203,375

13. Plants Mosses15,000 Ferns and allies13,025 Gymnosperms980 Dicotyledons199,350 Monocotyledons59,300 Green Algae3,715 Red Algae5,956 Subtotal297,326

14. Others Lichens10,000 Mushrooms16,000 Brown Algae2,849 Subtotal28,849

15.  1,589,361+ Source: The International Union for Conservation of Nature and Natural Resources (IUCN) 2007 Red List

16. What we know: The Earth is losing species at an alarming rate  Some scientists estimate that as many as 3 species per hour are going extinct and 20,000 extinctions occur each year.  when species of plants and animals go extinct, many other species are affected.

17. Habitat destruction Pollution Species Introductions Global Climate Change Exploitation

19. 1. What would happen to your lawn if you never took care of it? Would it become healthier or less so? 2. Is the earth becoming more or less diverse? Justify your answer. 3. Is biodiversity good for the earth or bad for the earth? Justify your answer.