London's FTSE 100 ticks higher as Shell lifts energy stocks The UK's FTSE 100 index inched up on Tuesday, as gains in energy stocks ‌following Shell's upbeat second-quarter guidance offset weakness in ...

Non-model organisms are organisms that have not been selected by the research community for extensive study either for historic reasons, or because they lack the features that make model organisms ...

Matter is made up of small particles called atoms. Atoms can exist on their own or together as molecules. Atoms are very small and around 100,000,000 of them end to end would measure 1 centimetre.

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