Intro Merge â adds variables to a dataset. Type help merge for details. Merging two datasets require that both have at least one variable in common (either string or numeric). If string make sure the categories have the same spelling (i.e. country names, etc.). The common variables must have the same name. Explore each dataset separately before merging.
Biotechnologist. Develops products with a biological ingredient or action, such as vaccines, antibiotics, hormones and washing powders. Biotechnologists are scientists who study and work with micro-organisms in a variety of areas including alcohol manufacture, agricultural genome mapping and medical science.
Astrobiologists, also known as exobiologists, life scientists, and space scientists, study the origin of all life formsâfrom a simple one-celled organism, to plants, to human beings. They study and research the evolution, distribution, and future of these life forms, on Earth as well as on other planets in our solar system and beyond. Many astrobiologists are employed by the National Aeronautics and Space Administration (NASA) and other government-funded agencies. They are also employed at private research institutions and colleges and universities.