Patterns of Adaptation” How do humans adapt to environmental challenges? In this lesson, experts explore this question from many angles. The difference between acclimatization and adaptation is explained. Nina Jablonski explains skin-color function and adaptations related to UV radiation levels, the vitamin D hypothesis, and preventing the loss of folate in the body. High-altitude adaptations are also discussed, along with responses to heat and cold stressors. In the last segment, the evolutionary dance between humans and their pathogens is brought to light. The interwoven interactions between human cultural activities, and the evolution of new pathogens, are discussed, as well as the evolution of drug resistance in existing pathogens.

Choose one of these topics and make sure to include the question ahead of your post. Posts that do not reflect the lesson and/or speakers will lose points. Remember, these lessons are your “classroom lectures.”

What does Nina Jablonski have to say about the issue of skin color, absorption of vitamin D, and the disease of Ricketts? What is the “Vitamin D hypothesis”? Make sure to “discuss” the issue/s.
Indicate and discuss what you have learned from Prof. Erikson about infectious diseases.
Discuss & describe the differences between long-term and short-term adaptations of the body to climate and/or culture?