ANTH 1102 Lecture Notes - Lecture 15: Nations Of Nineteen Eighty-Four, Neural Tube Defect, Spina Bifida
1 Mar 2018
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Document Summary
Phenotypic adaptation is an example of a biological adaptation that can occur during a lifetime. Responding to changing environmental stress: genetic adaptation. Skin cancer: high levels of melanin protect against skin cancer. Leads to neural tube defects during pregnancy (e. g. Related to dna replication and associated with infertility in rats. Convergent evolution: independent emergence of lighter skin in. Darker skin than their latitude of residence would suggest. Traditional diet of the inuit is extremely high in foods containing vitamin d (fish and marine mammals). Women have greater need for calcium and thus increased vitamin d production (more. At the knife"s edge - a balance that women need to find for uvb exposure. Populations with less massive individuals are more often found near the equator. Those with greater bulk are more often found further from the equator. Less surface area in comparison to body mass = less efficient in regulating heat effectively.
