Scientists are creating vaccinations that prevent people from getting bird flu. If the virus mutates, a new vaccine needs to be made. The vaccine needs to be tested, which can be dangerous. It also takes a long time for scientists to know whether the vaccine works.
c.tissue - the epithelium is a kind of tissue that makes up several organs in the body.
Just use photo math it’s great it’ll give you all the answers
The main way in which the four building blocks of “competitive
advantage” can make an organization more successful is by allowing for
products to be made with less overhead capital, therefore increasing
profits.
