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Put these levels of organization in order from smallest to largest.

  • Cell

  • Tissue

  • Molecule

  • Organelle

  • Organ

Course
Foundations of Modern Biology: Cells, Genes, and Evolution
8 units39 lessons
Topics
Biology (General/Introductory)Cell BiologyGeneticsMolecular BiologyEvolutionary BiologyPopulation Genetics
About this course

Build a cohesive, beginner-friendly understanding of modern biology by linking three core themes: how cells are built and powered, how genetic information is stored and expressed, and how heritable variation drives evolution. Emphasize correct mental models and essential vocabulary for cell structure and transport, enzymes and metabolism (ATP and respiration), and the central dogma (DNA replication, transcription, translation). Cover cell division, Mendelian inheritance, mutation effects, and evolutionary mechanisms, then connect molecular changes to organismal traits. Incorporate light quantitative reasoning through basic probability, Hardy–Weinberg calculations, and interpretation of simple graphs, tables, variables, and controls.