A short animated video on the structure of plants and the different roles played by their parts, with an emphasis on the role of flowers in the reproductive process of plants.
"This photograph of a stoma (plural: 'stomata') and guard cells on a buttercup leaf was taken using a scanning electron microscope (SEM). Stomata are pores in the surface of a leaf. The stomata and guard cells regulate the gases entering and leaving a plant's leaf." Copyright S Lowry and Getty Images