| Biology/Living Environment | ||
| Unit | Count | |
| The Unity and Diversity of Life | 237 | |
| Genetics | 299 | |
| Evolution | 202 | |
| Reproduction and Development | 264 | |
| Maintaining a Dynamic Equilibrium that Sustains Life | 317 | |
| Ecology | 380 | |
| The Impact of Humans on the Environment | 147 | |
| Laboratory Checklist | 341 | |
| TOTAL | 2187 | |
| Unit | Count | Section |
| The Unity and Diversity of Life | 70 | Life Processes and Homeostasis |
| 101 | Cell Structure and Function | |
| 66 | Human Physiology | |
| Genetics | 126 | Genes and Inheritance |
| 47 | DNA Structure and Replication | |
| 53 | Protein Synthesis | |
| 73 | Genetic Engineering | |
| Evolution | 98 | Natural Selection |
| 32 | Sources of Variation in Species | |
| 72 | Evolution as a Branching Tree | |
| Reproduction and Development | 54 | Asexual Reproduction |
| 81 | Sexual Reproduction and Development | |
| 129 | Human Reproduction and Development | |
| Maintaining a Dynamic Equilibrium that Sustains Life | 82 | Basic Biochemistry |
| 59 | Photosynthesis | |
| 35 | Respiration | |
| 70 | Disease as a Failure of Homeostasis | |
| 71 | Regulation to Maintain Homeostasis | |
| Ecology | 134 | Energy Flow and Cycling of Materials in an Ecosystem |
| 175 | Interrelationships between Species and the Environment | |
| 25 | Diversity of Populations and Stability of an Ecosystem | |
| 46 | Ecological Succession and Changes in Ecosystems | |
| The Impact of Humans on the Environment | 76 | Interrelationships between Humans and the Environment. |
| 45 | Impact of Technology and Human Population Growth | |
| 26 | Improving the Environment | |
| Laboratory Checklist | 5 | Safety |
| 94 | Correct Use of Instruments and Indicators | |
| 2 | Dichotomous Keys | |
| 19 | Observation of Biological Processes | |
| 6 | Dissection | |
| 13 | Developing an Hypothesis | |
| 30 | Designing and Conducting a Controlled Scientific Experiment | |
| 11 | Identifying Variables | |
| 46 | Collecting, Organizing and Analyzing Data | |
| 106 | Formulating a Valid Conclusion | |
| 9 | Recognizing Assumptions and Limitations of an Experiment | |
| Theme | Count | |
| Nutrition | 59 | |
| Transport | 108 | |
| Respiration | 58 | |
| Excretion | 15 | |
| Regulation | 104 | |
| Reproduction | 162 | |
| Development | 79 | |
| The Cell | 86 | |
| Locomotion | 9 | |
| Classification | 1 | |
| Cell division | 26 | |
| Biochemistry | 121 | |
| Genetics | 296 | |
| Evolution | 203 | |
| Interdependence of Living Things | 527 | |
| Tools of the Biologist | 333 | |
| Level | Count | |
| Basic | 1192 | |
| Intermediate | 842 | |
| Advanced | 153 | |
| Attribute | Count | |
| Graph | 149 | |
| Table | 124 | |
| Chart | 118 | |
| Diagram | 540 | |
| Reaction | 22 | |
| Reading Passage | 96 | |
| Apparatus | 80 | |
| Spanish Translations | 1375 | |