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  1. Cell Biology

    Unit Preview , Cell Membrane , Enzymes , Prokaryotic and Eukaryotic Cells , RNA's Role , The Role of the Endoplasmic Reticulum and the Golgi Apparatus , Energy Capture and Storage , Mitochondria , Macromolecules , What Determines the Eukaryotic Cell's Shape?
  2. Mutations and Sexual Reproduction

    Unit Preview , Meiosis , Random Chromosome Segregation , New Combinations of Alleles , How Do Chromosomes Define Sex? , Predict Possible Combinations of Alleles
  3. Development of Multicellular Organisms

    Unit Preview , Possible Outcome of Phenotypes , Mendel's Laws , Genetic Maps
  4. Genes and DNA

    Unit Preview , Protein Synthesis , Genetic Coding Rules , Effects of DNA Mutation , Cell Gene Patterns in Multicellular Organisms , Protein Differences
  5. Alteration of Genetic Composition

    Unit Preview , Structure and Function of DNA, RNA , Base Pairing Rules , Genetic Engineering , DNA Technology and Recombinant DNA , Adding DNA to Bacterial Genetic Material
  6. Balance in the Ecosystem

    Unit Preview , Biodiversity , Ecosystem Changes , Fluctuation in Population Size , Water, Carbon and Nitrogen Cycle , Stability in an Ecosystem , Energy Pyramid , Accommodation and Adaptation
  7. Evolution

    Unit Preview , New Mutations , Selection and Diversity , Evidence of Evolution , Branching Diagrams , Natural Selection , Lethal Homozygous Alleles and Their Roles , Hardy-Weinberg Equilibrium
  8. Genetic Changes During Evolution

    Unit Preview , Great Diversity-Increased Chance to Survive , Effects of Genetic Drifts , Reproductive and Geographic Isolation , Fossil Analysis , Branching Diagram (Cladogram) , When Did the Different Organisms Start to Develop Differently?
  9. Major Body Systems

    Unit Preview , Circulation , Digestive System , Digestive Enzymes , Kidney's Role , Respiratory System
  10. Communication Systems in the Body

    Unit Preview , The Nervous System , The Roles of the Sensory Neurons, Interneurons, and Motor Neurons , Cellular and Molecular Basis of Muscle Contraction , Endocrine System , Hormones
  11. Diseases

    Unit Preview , Skin's Role , Antibodies, Vaccination , The Differences Between Bacteria and Viruses , The Problems of a Compromised Immune System , Phagocytes, B-lymphocytes and T-lymphocytes
  12. Texas TEKS Summary Assessment Biology

    Texas TEKS Summary Assessment Biology