The use of human embryos for research on embryonic stem (ES) cells is currently high on the ethical and political agenda in many countries. Despite the potential benefit of using human ES cells in the treatment of disease, their use remains controversial because of their derivation from early embryos.
This branch advertise on Rightmove.co.uk, the UK's number one property website. More than 4.9 million home hunters view over 444 million page views per month on Rightmove. Over 20,000 members advertise over 1,120,000 properties for sale or rent in the UK and Overseas.ore than 4.9 million home hunters view over 444 million page views per month on Rightmove. Over 20,000 members advertise over 1,120,000 properties for sale or rent in the UK and Overseas.
By looking at lots of people, eye doctors have decided what a normal human being should be able to see when standing 20 feet away from an eye chart. If you have 20/20 vision, it means that when you stand 20 feet away from the chart you can see what the normal human being can see.From here on, please assume that the word normal has quotes around it). If you have 20/40 vision, it means that when you stand 20 feet away from the chart you can see what a normal human can see when standing 40 feet from the chart.