Learn about the ancient Greeks at way, including how the army fought, famous battles and the Spartan soldier state in this KS2 History guide from BBC Bitesize. Jamie Vardy and Eric Dier score their first international goals as England came from 2- 0 down to beat Germany in Berlin.
Revise and learn about Simon Armitage' s poem, Remains with BBC Bitesize GCSE English Literature poetry vise and learn about Simon Armitage' s poem, Remains with BBC Bitesize GCSE English Literature poetry resources. To distinguish between dead and viable cells, the sample is often diluted with a particular stain, such as Trypan blue. This staining method, also known as dye exclusion staining, uses a diazo dye that selectively penetrates cell membranes of dead cells, coloring them blue, whereas it is not absorbed by membranes of live cells, thus excluding live cells from staining.