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3kg of meat costs £54, Nina buys 2 kg of the meat. Work out how much Nina pays. (non-calculator)

I used ratios in this context3kg : £54Using this ratio to work out the price of 2kg 2kg: £? To get from the number '3' to '2', I have to divide 3 by 3, then multiply it by 2So, using this same method (as I w...
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Answered by Phazilah R. • Maths tutor
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What does speciation mean?

Speciation is the process in which new species arise from exisiting ones. A species is defined as organisms that can reproduce together to produce fertile offspring. This process starts with the isolation of...
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Answered by Saahil H. • Biology tutor
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What is the difference between a conformer and a regulator?

A conformer is an organism which is unable to regulate its own internal temperature, therefore, it's internal environment is dependent upon its external environment (e.g. lizards). Whereas a regulator is an ...
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Answered by Heather D. • Biology tutor
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Through what process does oxidative phosporylation, to produce energy using oxygen as a final electron acceptor, occur, and where in the cell?

The electron transport chain, consisting of four complexes that each export hydrogen to the inner membrane space, sets up a electrochemical gradient across the membrane2) The final complex, ATP Synthase, the...
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Answered by Chris B. • Biology tutor
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Wann soll das Plusquamperfekt benutzt werden, und wann kann stattdessen das Perfekt benutzt werden?

The Plusquamperfekt is used to refer to the so-called "Vorvergangenheit" or pre-past, meaning that, if you are for example telling a story that is set in the past, you would be using the Perfekt te...
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Answered by Johanna T. • German tutor
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