Textbook Question
Summarize the hypotheses that explain variation in human skin color as adaptations to variation in UV radiation.
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Table of contents
- 1. Introduction to Biology
- 2. Chemistry
- 3. Water
- 4. Biomolecules
- 5. Cell Components
- 6. The Membrane
- 7. Energy and Metabolism
- 8. Respiration
- 9. Photosynthesis
- 10. Cell Signaling
- 11. Cell Division
- 12. Meiosis
- 13. Mendelian Genetics
- Introduction to Mendel's Experiments
- Genotype vs. Phenotype
- Punnett Squares
- Mendel's Experiments
- Mendel's Laws
- Monohybrid Crosses
- Test Crosses
- Dihybrid Crosses
- Punnett Square Probability
- Incomplete Dominance vs. Codominance
- Epistasis
- Non-Mendelian Genetics
- Pedigrees
- Autosomal Inheritance
- Sex-Linked Inheritance
- X-Inactivation
- 14. DNA Synthesis
- 15. Gene Expression
- 16. Regulation of Expression
- Introduction to Regulation of Gene Expression
- Prokaryotic Gene Regulation via Operons
- The Lac Operon
- Glucose's Impact on Lac Operon
- The Trp Operon
- Review of the Lac Operon & Trp Operon
- Introduction to Eukaryotic Gene Regulation
- Eukaryotic Chromatin Modifications
- Eukaryotic Transcriptional Control
- Eukaryotic Post-Transcriptional Regulation
- Eukaryotic Post-Translational Regulation
- 17. Viruses
- 18. Biotechnology
- 19. Genomics
- 20. Development
- 21. Evolution
- 22. Evolution of Populations
- 23. Speciation
- 24. History of Life on Earth
- 25. Phylogeny
- 26. Prokaryotes
- 27. Protists
- 28. Plants
- 29. Fungi
- 30. Overview of Animals
- 31. Invertebrates
- 32. Vertebrates
- 33. Plant Anatomy
- 34. Vascular Plant Transport
- 35. Soil
- 36. Plant Reproduction
- 37. Plant Sensation and Response
- 38. Animal Form and Function
- 39. Digestive System
- 40. Circulatory System
- 41. Immune System
- 42. Osmoregulation and Excretion
- 43. Endocrine System
- 44. Animal Reproduction
- 45. Nervous System
- 46. Sensory Systems
- 47. Muscle Systems
- 48. Ecology
- 49. Animal Behavior
- 50. Population Ecology
- 51. Community Ecology
- 52. Ecosystems
- 53. Conservation Biology
32. Vertebrates
Primates and Homonids
Back32. Vertebrates
Primates and Homonids
- Textbook QuestionExplain some of the reasons why the human species has been able to expand in number and distribution to a greater extent than most other animals.1111views
- Textbook QuestionAnthropologists are interested in locating areas in Africa where fossils 4–8 million years old might be found. Why?649views
- Textbook Question
By measuring the fossil remains of Homo floresiensis, scientists have estimated its weight to be around 32.5 kg and its brain volume to be roughly 420 cm3. Plot these values on the graph in Figure 19.13A. Which hominin has the most similar relationship of brain volume to body mass? Does this information support the hypothesis that H. floresiensis is a dwarf form of H. erectus, or an alternative hypothesis? Explain.
980views - Textbook Question
Most species of hominins are known only from Africa. Which species have been found in other parts of the world as well?
a. early Homo—H. habilis and H. ergaster
b. H. erectus, H. neanderthalensis, and H. floresiensis
c. Australopithecus afarensis
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