English > STUDY GUIDE > Study Guide > Mod5 DBA_Revised_ (1) University of Florida MODULE 5 DBA & Exam Study Guide. (All)

Study Guide > Mod5 DBA_Revised_ (1) University of Florida MODULE 5 DBA & Exam Study Guide.

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The Module 5 Exam will look and feel VERY similar to this practice test below. You can see from the questions below that many of the terms that we have defined above are used and applied in the questions of the exam. This practice exam is part of your Module 5 pre-test so some sections may look familiar. Science Mysteries: How Many Species Are There? You might think that after 200 years, the scientists who find, name, and describe Earth's species would be close to finished. But taxonomists, as organized as they may be, have no idea how many species Earth has. Nor can they even provide an educated guess. Although reporting over 16,000 new species every year, taxonomists still cannot predict how many more are undiscovered. In total, taxonomists have categorized and listed 1.2 million species on Earth. At this point, you would think scientists should be able to use the information they have gathered to make good predictions about how many species an ecosystem can support. This would help them make better predictions about how many species are left to identify. So far, however, the guesses seem to vary so greatly that it seems there is no good theory for making a prediction. One of the main problems is that most of the places that seem to have a lot of diverse species are in places that are hard to get to. One such place is the ocean, where scientists believe some 80 percent of Earth's creatures are hiding at depths too deep for us to study. In addition, many of the planet's most diverse areas are in remote places with few taxonomists. Despite all the unknowns, scientists have agreed that there are between five and 15 million species left to discover on Earth. This is a huge range, but whether it's five or 15, taxonomists clearly still have a lot of work to do. And who knows, there may yet be a dragon or a Loch Ness monster left to discover. Which word from the second paragraph explains what taxonomists do? Categorized Ecosystem Support Prediction Which word from the third paragraph BEST describes the problem facing taxonomists? Diverse Ocean Creatures Remote Which phrase from the text best describes scientists' problem making predictions about undiscovered species? Categorized and listed 1.2 million Predictions vary so greatly A lot of diverse species Scientists have agreed Which line from the text explains the main point of the first paragraph? The scientists who find, name and describe Earth's species would be close to finished Nor can they even provide an educated guess Reporting over 16,000 new species every year Taxonomists still cannot predict how many more are undiscovered Which line from the text explains the MAIN point of the concluding paragraph? Despite all the unknowns, scientists have agreed There are between five and 15 million species left to discover on Earth Taxonomists clearly still have a lot of work to do There may yet be a dragon or a Loch Ness monster left to discover

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