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The first line of defence is passive immunity. An example is the skin and its job is to prevent a pathogen entering the body in the first place. Pathogens cannot penetrate the skin. The second line of def...

Transcription is the making mRNA from DNA. Translation is using the mRNA to code for a protein.

The electrical activity is initiated by the pacemaker of the heart, the sino-atrial node at the top of the left atrium. This spreads across the atria before reaching the atrio-ventricular node. Here there...

For six mark questions, it is important to remember that your quality of written communication will be assessed. This basically means that you're spelling, punctuation, use of terminology and how you form...

A jury is comprised of jurors, whose purpose is to render a verdict submitted to them by a court. This "trial by peers" approach has stood the test of time and has been long established. However...