Farmers and gardeners often use books and the internet to identify plant diseases. They can also take a small cutting of an infected plant (or a photograph of it) to a local garden centre, which have ...

Organisms are made up of cells. Most organisms are multicellular and have cells that are specialised to do a particular job. Microscopes are needed to study cells in detail. Cell division - AQA ...

If you are feeling under the weather, just stick out your tongue - the state it's in can present an accurate picture of your health. The colour, texture and moisture of your tongue can provide tell ...