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Neurotransmission is when an electrical impulse travels down the axon of a neutron, releasing neurotransmitters which cross the synapses to convey messages through the central nervous system. One example ...

 A field experiment is where the independent variable (IV) is manipulated and dependent variable (DV) is measured but the experiment is carried out in a setting that is natural to the participant. This is...

In every gene, a sequence of three nucleotide bases will code for an amino acids, many of which form a protein. Within the normal gene for haemoglobin, the sequence of bases will code to produce amino aci...

Paper 1 is a source-based paper split into four questions. Each question requires a different technique in order to gain top marks.

Question 1 is split into two parts, both parts are testing your b...

The loss of coral reefs and mangrove systems would have a major socio-economic impacts. Firstly, without coral reefs and mangrove systems, the nearby coastline would experience an increasing vulnerability...