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Biology

Explain how a stent works to treat Cardiovascular Disease? (3 marks)

Cardiovascular disease is associated with the deposit of fats and lipids in the blood vessels like arteries that can then cause blood clots. These clots can pre...

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What are the two types of immune system?

Immune system acts as the body’s defence system against foreign particles and pathogens. It recognizes and attacks pathogens so that we do not get ill, and stay...

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explain how the nervous system increases heart rate

The normal heart rate is called the basal heart rate, and this can deviate from the normal by external signals from the nervous and hormonal system. The nervous...

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"Describe how genetic fingerprinting is carried out? (example of 6-mark question)"

Genetic fingerprinting or DNA fingerprinting is used to detect several different numbers of repeats of minisatellites in a DNA that generate different patterns...

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