Mec 280 Quiz 1 - Quiz 1 is due on Saturday 1a What is the...

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Quiz 1 is due on Saturday, 5/31/2014 1a. What is the subtitle of the ecology movie “Race to save the planet”?1b. How many species become extinct by humans?2a. How many species exist roughly on the planet?2b. What fraction of species on the planet been threaten by humans?3a. what percentage of the world’s animal tissue is comprised of ants?3b. Give one important use of ants?4a. Every country has three kinds of wealth. Name them?4b. Give three reasons why one of these wealth is extremely important?5a. Give any two important ways how plants can be used?

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