Scanning electron micrograph of part of a thale cress flower, showing the male and female reproductive organs. The female part of the flower, the pistil (the blue feathery structure on an olive green.
Lily flower bud Spike Walker Light micrograph of a stained slice of a lily flower bud showing the male and female reproductive organs.
This image from the Wellcome Images collection shows a false-coloured scanning electron micrograph of a zebrafish embryo taken by Annie Cavanagh
Scanning electron micrograph of a kidney stone (nephrolithiasis). Kidney stones form when salts, minerals and chemicals in the urine (for example calcium, oxalate and uric acid) crystallise and solidify. Small kidney stones are often passed naturally but