Abiotic factors in a lake ecosystem include non-living components such as light, temperature, pH of the water and oxygen content. Biotic factors include living components of a lake such as bacteria, phytoplanktons, aquatic plants, zooplankton, crustaceans, molluscs, insects, fish and other vertebrates. Continue Reading.
To become a surgical tech, it's usually only a year. I believe it's a certificate program, not a degree. And I recommend that if you know you want to be in the OR and you want to assist with surgery, go for the surgical tech. Nurses have pretty much been phased out from actually assisting the surgeon.
  Answer   It takes 3 years to become a CT Technologist. 2 years of x-ray school first, then if there's open position in a CT department the other CT techs will train â¦ you. CT training itself by other CT techs will take about a year before you can feel confident and be competent.aking the world better, one answer at a time. An MRI tech prepares patients for brain scans and ensure careful use of the equipment. It takes on average 5 to 6 years to become an MRI tech.