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Answer Sheet Define: “alien species” a plant or an animal found in a place where it doesn’t belong


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Strange Days on Planet Earth: Invaders

Answer Sheet

1. Define: “alien species”



A plant or an animal found in a place where it doesn’t belong.
2. What sparked Carlton’s interest in invaders?

His experience when he was a boy. In 1962, he discovered a tubeworm colony that was only supposed to be found in the South Seas.
3. Plants and animals are able to move great distances through “Global

Transportation.”




  1. New species in an ecosystem could create a catastrophic impact on the

________________.

    1. Economy b. Environment

    2. Society c. All of the above




  1. What is the name of the invader causing all sorts of trouble in New Orleans, LA?

Formosan Subterranean Termites


  1. Where were these invaders originally from?

Japan
7. How can tiny insects cause so much damage?

There are so MANY!

8. In what year was Water Hyacinth first spotted in Lake Victoria, Uganda? 1989

9. How many years did it take for the Water Hyacinth take to clog 80% of the

shoreline? _7_


10. Why is water Hyacinth a problem?

It clogs water ways and it makes it hard for fishermen to get through to fish. Rotting vegetation causes drinking water problems. It also creates habitat for snails and mosquitoes that carry parasites that harm human health.
11. Bio -control is the term used for introducing one alien species to fight another.
12. Name 2 species that we typically think of as Hawaiian, but are actually alien.

Palms, parrots, pineapples, flowers in the lays, macadamia nuts, or sugar cane
13. What alien species, in Hawaii, is causing unusual amounts of erosion and

landslides? Where is it from?



Miconia from Mexico.
14. In Hawaii, the bird Japanese White Eye helps the Miconia spread its Seeds .
15. How does the Miconia disturb the native plants and cause erosion in the Hawaiian

rainforest?



Miconia are tall plants that cause the plants underneath them to die because they cannot get enough light. Without those plants to help hold the soil in place erosion and landslides occur. Miconia roots are too shallow to hold onto the soil.
16. Globalization of Trade drives the globalization of Species______.
17. 99 % of marine life in the San Francisco Bay is alien species.
18. True / False.

If the earth consisted of only ONE large continent it would be able to host MORE species than an earth with many smaller continents.


19. What is the number one cause of extinction on earth today?

(Hint: Invasive or alien species is the #2 cause.)



Habitat Destruction
20. NOT IN THE MOVIE: Name an alien species that you know of that was not

discussed in the video.



Strange Days on Planet Earth: Invaders

1. What is an “alien species?”

2. What sparked Carlton’s interest in invaders?

3. Plants and animals are able to move great distances through “_______________

Transportation.”


  1. New species in an ecosystem could create a catastrophic impact on the

________________.

    1. Economy b. Environment

    2. Society c. All of the above




  1. What is the name of the invader causing all sorts of trouble in New Orleans, LA?


  1. Where were these invaders originally from?

7. How can tiny insects cause so much damage?

8. In what year was Water Hyacinth first spotted in Lake Victoria, Uganda? _________

9. How many years did it take for the Water Hyacinth take to clog 80% of the

shoreline? _______

10. Why is water Hyacinth a problem?

11. ______-control is the term used for introducing one alien species to fight another.

12. Name 2 species that we typically think of as Hawaiian, but are actually alien.


13. What alien species, in Hawaii, is causing unusual amounts of erosion and

landslides? Where is it from?

14. In Hawaii, the bird Japanese White Eye helps the Miconia spread its ___________ .
15. How does the Miconia disturb the native plants and cause erosion in the Hawaiian

rainforest?


16. Globalization of ______________ drives the globalization of ________________.

17. ______ % of marine life in the San Francisco Bay is alien species.

18. True / False

If the earth consisted of only ONE large continent it would be able to host MORE species than an earth with many smaller continents.

19. What is the number one cause of extinction on earth today?



(Hint: Invasive or alien species is the #2 cause.)
20. NOT IN THE MOVIE: Name an alien species that you know of that was not

discussed in the video.


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