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How does oxygen move into blood

Blood is made of many components, one of them being red blood cells. These are responsible for carrying oxygen around the body. Haemoglobin is the protein molecule within red blood cells that binds to oxygen...
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Answered by Nisha A. • Biology tutor
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What is the impact of a fall in the central bank interest rate on the macroeconomic performance of the UK economy?

Firstly, it expands the aggregate demand since invesment rises. Hence GDP rises. However, this depends on whether the fall is anticipated by markets already. Secondly, it devalues the UK's exchange rates aga...
GM
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What is the impact of a rise in national minimum wage on the labour market?

Minimum wage is a crucial topic in A-level micro economics and I thought it ought to be one of the questions prepared.
GM
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What is the definition of a species?

Scientists have come up with many different definitions of a species over the years; reproductive isolation being key to all concepts. However the most widely accepted is the biological species concept: 'Spe...
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Answered by Abigail G. • Biology tutor
5329 Views

What are the events that lead to genetic variation in gametes?

Sources of genetic variation consist of random fertilisation and mutation. Mutation is a product of mistakes made during DNA replication. There are two main types of mutation; point gene mutation and chromos...
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Answered by Danielle W. • Biology tutor
18780 Views