How to Learn Biology

Explore the major classes of biological macromolecules (carbohydrates, lipids, proteins, nucleic acids) and the metabolic pathways that sustain life, including photosynthesis, cellular respiration, and enzyme kinetics.

Study DNA structure and replication, gene expression through transcription and translation, and the regulation of gene activity. Understand Mendelian inheritance, chromosomal genetics, and the molecular basis of mutations.

Learn the mechanisms and regulation of mitosis and meiosis, the cell cycle and its checkpoints, and how cell division relates to growth, development, and cancer. Explore basic principles of developmental biology and cell differentiation.

Examine the evidence for evolution, the mechanisms of evolutionary change including natural selection, genetic drift, and gene flow, and how new species arise through speciation. Study population genetics and Hardy-Weinberg equilibrium.

Survey the major domains and kingdoms of life, from bacteria and archaea to protists, fungi, plants, and animals. Learn principles of taxonomy, phylogenetics, and how to read and construct evolutionary trees.

Study the structure and function of major organ systems in animals, including the nervous, cardiovascular, respiratory, digestive, immune, and endocrine systems. Understand how these systems maintain homeostasis.

Explore the interactions between organisms and their environments at the population, community, ecosystem, and biosphere levels. Study energy flow, nutrient cycling, biodiversity, conservation biology, and the impacts of human activity on natural systems.