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.
According to the CIA World Fact book there are around 6,677 billion people living on the world in this year. 6.3 billion are estimated to be alive today. Scientists think that one out of every 7 people that ever lived is walking the Earth today. My Teacher the other day mentioned around 6.6 Billion people.