1 The training course is five weeks. 2  During the first two weeks, students are in the classroom. 3  During the second three weeks, students complete a clinical externship at various Intermountain Healthcare hospitals.
But surprisingly, we still donât know how many species live by the shore: estimates vary widely, from 178,000 species to more than 10 million. NaGISA scientists pulled on their boots and waded and dived in coastal waters around the world to estimate the number of species on our coasts more precisely.
There are 118 different elements currently on the periodic table. Several elements have only been found in laboratories and nuclear accelerators. So, you may wonder how many elements can be found naturally. The usual textbook answer is 91. Scientists used to believe that, with the exception of the element technetium, all the elements up to element 92 could be found in nature. However, it turns out there are other elements that occur in trace amounts naturally. 1  This brings the number of naturally occurring elements to 98. Technetium is one of the newer elements added to the list. 2  All six of these elements have been found in very small amounts in samples of uranium-rich pitchblende.