Figure 6.3. Classification Levels (Image copyrighted and used with permission by Peter Halasz)
Figure 6.4. Energy Pyramid (Image copyrighted and permitted to use by Danie1996)
Figure 6.5. Animal Cell (Content provided by the National Human Genome Research Institute)
Figure 6.6. Plant Cell (Content provided by Mariana Ruiz, LadyofHats)
Figure 6.8. Cross-Section of a Leaf (Content provided by U.S. Fish & Wildlife Service)
Figure 6.9. Parts of a Flowering Plant (Content provided by Mariana Ruiz, LadyofHats)
Figure 6.10. Phases of Mitosis (Content provided by Mariana Ruiz, LadyofHats)
Figure 6.11. Phases of Meiosis (Content provided by the NCBI of the National Institutes of Health)
Figure 6.12. Punnett Square (Image used with permission by Madprime)
Figure 6.13. DNA Replication (Content provided by U.S. Department of Energy)
Figure 7.1. The Water Cycle (Image copyrighted and used with permission by Wasserkreislauf)
Figure 8.1. Body Planes (Content provided by the U.S. National Library of Medicine)
Figure 8.2. The Skin (Illustration by Don Bliss from the National Cancer Institute)
Figure 8.3. The Skeleton (Content provided by Mariana Ruiz, LadyofHats)
Figure 8.4. The Muscles
(a) Source: Häggström, Mikael (2014). “Medical gallery of Mikael Häggström 2014”. WikiJournal of Medicine 1 (2). DOI:10.15347/wjm/2014.008. ISSN2002-4436. Public Domain
(b) Häggström, Mikael (2014). “Medical gallery of Mikael Häggström 2014”. WikiJournal of Medicine 1 (2). DOI:10.15347/wjm/2014.008. ISSN2002-4436. Public Domain
Figure 8.5. The Nervous System (Content provided by the National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health)
Figure 8.6. Neurons (Content provided by the NIA of the National Institutes of Health)
Figure 8.7. Some Endocrine Glands (Content provided by the National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health)
Figure 8.8. The Circulatory System (Content provided by the National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health)
Figure 8.9. The Heart (Content provided by the National Heart, Lung, and Blood Institute, National Institutes of Health)
Figure 8.12. The Respiratory System (Content provided by the National Cancer Institute)
Figure 8.14. The Digestive System (Content provided by the National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health)
Figure 8.15. The Urinary System (Content provided by the National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health)
Figure 8.16. The Reproductive System (Content provided by the Department of Health and Human Services, Centers for Disease Control and Prevention)
Figure 9.3. Electromagnetic Spectrum (Content provided by the National Institute of Environmental Health Sciences, National Institutes of Health)