There's a lot of life out there ... and we make sense of it all using kingdoms. Life processes - Variation and classification - Classifying living things Learning Points There are five kingdoms: animal, plant, fungi, protoctista and prokaryote. Most organisms in the prokaryote kingdom have a very simple structure and consist of just a single cell. A Twig Curriculum Film. Delivering key learning points. Get straight to the facts in just three minutes – directly linked to core learning, Twig's curriculum films will fit neatly into your lesson plans.