This diversity helps tumours adapt to become untreatable and colonise new parts of the body.
But even producing knock-offs takes skill, particularly when the original companies are determined to colonise the Chinese market.
ECONOMIST: India and China are creating millions of entrepreneurs
To men of Mr Klein's practical disposition, the scope of Israel's failure to colonise the city inspires hope.
Turkomen nationalists say that the returnees are outsiders, brought in to colonise a strategic outpost close to northern Iraq's oilfields.
ECONOMIST: Ethnic rivalry in Iraq's relatively peaceful north
Col Gaddafi accused Western countries of abandoning Libya and said that they had no morals and wanted to colonise the country.
In addition, further genes have been inactivated so that the organisms are less able to colonise the gut and survive in nature.
Residents of Russia's far east fear that China is planning to plunder their oil and timber and perhaps even to colonise their empty spaces.
At least 1, 000 other species colonise the mouth, nose and gut.
They colonise, with their neat bungalows and family businesses, areas of cities (such as South Central in Los Angeles) that both whites and blacks have abandoned.
How can vigorous attempts to colonise the occupied territories be reconciled with Israel's claim to accept 242 and the principle of land for peace that underlies it?
The research contributes to a more complex picture that has been emerging of humankind during the Late Pleistocene, the period when modern humans left Africa and started to colonise the rest of the world.
Should we be so frivolous by our excessive nature, and be trusted to visit, contaminate and perhaps colonise another planet when we seem so incapable of conserving and looking after our own home world?
Some of their aims, such as abortion by choice, brought them into conflict with a regime that said it was a woman's patriotic duty to have a large family to provide soldiers and colonise the country's expanding empire.
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