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The heart is divided into two halves - right and left. In each half there are two chambers - an atria and a ventricle, which are connected by a valve. The right atria receives deoxygenated blood from the ...
To answer a describe question, you must make statements containing facts which answer the question. For each correct statement that you make, you will receive 1 mark. You can also develop points by adding...
The muscle of the right ventricle contracts. This forces the {right atrio-ventricular/tricuspid} valve to close and the {right semi-lunar/pulmonary} valve to open. The blood is pumped through the pulmonar...
Introduction- Bring in your answer to the question, and explain the structure of your essay briefly. How is significance measured in your answer?POINT- Reform League (start with the named factor an...
A common mistake is to answer this question with the explanation that the light is not rotated because no optical isomers are present. However, this is incorrect. The only other time where plane polarised...
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