Cells are tiny, so we use microscopes to see their details. A slide is a thin piece of glass used to hold objects which are examined under a microscope. Peel a thin layer of cells from an onion. Place ...
Get the support you need for your biology exam revision in 2026, whether you’re studying GCSE biology, Scottish National 5 biology or Higher biology. Check out our top tips to help you smash your GCSE ...