By Orange Learning / May 1, 2023 Prokaryotes Lesson Content ProkaryotesWhat are prokaryotes?Characteristics of ProkaryotesTiny sizeLack of defined nucleusCell wallMobilityImportance of ProkaryotesNutrient recyclersNitrogen fixersSymbiosisCuriosities About ProkaryotesConclusionExplore MoreReview QuestionsIndividual ActivitiesTake this Learning to a Group 🔒 Login or subscribe to access this content. Module Lessons Life of Alexander Fleming Bacteria Prokaryotes Human Microbiome Gut Microbiota Bacterial Infections Antibiotics Penicillin Scientific Method Serendipity in Science