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Every individual's DNA sequence is different and genetic fingerprinting can be used to distinguish individuals based on their unique DNA sequence. To begin, DNA needs to be extracted from a sample , which co...

The eye responds to bright light to protect the retina from damageThe bright light triggers a reflex that makes the pupils smaller, meaning less light enters the eyeAs with all reflexes, there is a stimulus,...

All cells in our body contain the same genetic information stored in the DNA chromosomes located in the nucleus. So how do cells become skin cells, liver cells etc.? Cells undergo a process called differenti...

Over fertilisation is heavily linked to leeching and eutrophication. By adding more fertilisers and minerals to the soil, the soil is more likely to become saturated. Therefore, when it rains, the soluble fe...

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