Biology Materials • Library • Lenny Learning

Science & Engineering Life Science Living Things Animals Plants Body Systems Traits Adaptations Cells Ecosystems Heredity Genes to Traits Cell Division Physics Comparing Materials Shapes and Properties Magnets Magnetism Light Sound Light and Sound Matter States of Matter Changes of State Mixtures Physical and Chemical Change Heating and Cooling Heat and Thermal Energy Energy Force and Motion Electrical Circuits Atoms and Molecules Periodic Table Motion in One Dimension Motion in Two Dimensions Scalars and Vectors Forces and Laws of Motion Circular Motion and Gravity Momentum and Impulse Work, Energy, and Power Waves Electromagnetic Waves Geometric Optics Electricity and Magnetism Simple Harmonic Motion Thermodynamics Nuclear Physics Earth Science & Astronomy Weather Water Cycle Rocks and Minerals Fossils Earth's Features Earth's Resources Earth's Structure Weather and Climate Earth Events Fossils and Geologic Time Plate Tectonics Human Impacts Astronomy Chemistry Units and Measurement Atomic Structure Periodic Trends Chemical Bonding Nomenclature Molecular Structure Intermolecular Forces The Mole Stoichiometry Properties of Gases Solutions Chemical Reactions Balancing Equations Energy Changes Rates of Reactions Equilibrium Acids and Bases Quantum Model Biology Classification Cell Structure The Chemistry of Life Biomolecules Cellular Transport Cell Energy Cell Growth and Division DNA Protein Synthesis Meiosis and Sexual Reproduction Patterns of Inheritance Multicellular Organisms Evolution Ecology Biodiversity Computer Science Algorithms and Computational Thinking Programming Languages Computing Systems Networks and Internet Data Analysis Cybersecurity AI and Machine Learning Software Design and Development Blockchain Engineering & AI Designing Experiments Engineering Practices Design Thinking Engineering Design Process Mechanical Engineering Electrical Engineering Materials and Structures CAD and 3D Design Robotics Artificial Intelligence Basics Vibe Coding Machine Learning AI Ethics and Society Systems Thinking Entrepreneurship & Innovation Entrepreneurial Mindset Business Idea Development Business Plan Basics Marketing & Customer Discovery Financial Management for Startups

ClassificationTaxonomic hierarchies, binomial nomenclature, and the criteria used to group organisms into domains and kingdoms. Examines evolutionary relationships through the analysis of shared morphological and genetic traits.

Cell StructureStructural components of prokaryotic and eukaryotic cells including organelles and the plasma membrane. Examines how specialized functions within the nucleus, mitochondria, and ribosomes support essential life processes.

The Chemistry of LifeAtomic structure, chemical bonding, and the unique properties of water that support biological systems. Examines the composition and function of macromolecules, including proteins, carbohydrates, lipids, and nucleic acids.

BiomoleculesChemical structures and biological functions of carbohydrates, lipids, proteins, and nucleic acids. Connects molecular properties to metabolic processes and cellular architecture.

Cellular TransportPassive and active transport mechanisms including diffusion, osmosis, and facilitated diffusion. Examines how cell membranes maintain homeostasis through endocytosis, exocytosis, and protein pumps.

Cell EnergyBiochemical pathways of photosynthesis and cellular respiration, focusing on ATP synthesis and energy transfer. Addresses glycolysis, the Krebs cycle, and electron transport chains in metabolic regulation.

Cell Growth and DivisionMitosis, meiosis, and the regulatory mechanisms of the eukaryotic cell cycle. Addresses DNA replication, chromosome segregation, and the biological consequences of uncontrolled cell growth.

DNAMolecular structure of the double helix, base pairing rules, and the mechanics of replication. Connects genetic coding to protein synthesis and biological inheritance.

Protein SynthesisTranscription and translation processes that convert genetic instructions into functional polypeptide chains. Examines the roles of mRNA, tRNA, and ribosomes in decoding the genetic sequence into amino acids.

Meiosis and Sexual ReproductionChromosome reduction through meiosis I and II, including crossing over and independent assortment for genetic variation. Connects gamete formation to fertilization and the lifecycle of sexually reproducing organisms.

Patterns of InheritanceMendelian genetics, Punnett squares, and mechanisms of trait transmission. Examines dominant, recessive, and complex patterns including incomplete dominance, codominance, and sex-linked inheritance.

Multicellular OrganismsSpecialized cell functions, tissue organization, and organ system coordination in plants and animals. Examines cell differentiation and the biological processes required to maintain homeostasis in complex life forms.

EvolutionNatural selection, genetic drift, and mutation as mechanisms of biological change over time. Examines speciation, fossil evidence, and comparative genomics to understand common ancestry.

EcologyInteractions between organisms and their environments, including energy flow, nutrient cycling, and population dynamics. Examines ecosystem structures, biodiversity, and human impacts on environmental sustainability.

BiodiversityEcological systems, species richness, and genetic variation within populations. Examines threats like habitat loss and the importance of conservation for ecosystem stability.