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What is the definition of structural isomerism and what are the different types?

Structural Isomerism: Molecules with same molecular formula and different structural formula.

Different types: Positional, chain, functional group

EA
Answered by Ellie A. Chemistry tutor
2851 Views

How are the dead presented in this anthology? Refer to two or three texts in your answer. (World War One Literature)

The dead are a central focus for war poetry and the notion of death is trivialised throughout the poems in this anthology. Poems such as 'The Soldier' by Rupert Brooke glorify the dead and display the aft...

RD
6134 Views

Vaccines have become an effective way to prevent certain diseases, however for some viruses it is difficult to develop a vaccine. Describe possible difficulties of developing a permanent vaccine for the influenza virus.

The influenza virus has a very high mutation rate. This means that its surface proteins (antigens) will change. Since a vaccine contains a specific antigen, if the virus switches to a different antigen, t...

NL
Answered by Nancy L. Biology tutor
2661 Views

Explain the stages of the cardiac cycle

The cardiac cycle consists of series of chamber systole and diastole. Systole is the name given to a period when cardiac muscle contract to cause blood ejection from the respective chamber to another. Dia...

AB
16198 Views

Give one piece of evidence that supports the theory that mitochondria evolved from prokaryotic cells. (1 mark)

Size: mitochondria are 2uM in diameter, similar to bacteria. Also applies to genome size and content, suggesting an 'endosymbiosis' event.

LM
Answered by Lauren M. Biology tutor
7405 Views

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