BIOL 1000 Lecture Notes - Lecture 3: Ecological Light Pollution, Rickets, Electromagnetic Spectrum
Document Summary
Bioluminescence: range of organisms can use chemical energy to make light referred to as bioluminescence. Lumen = light: bioluminescent organisms use light to: The dark side of light: light can damage biological molecules (including. Barsh gs, 2003 what controls variation in human skin color?. Vitamin d3 (cholecalciferol) made in skin http://en. wikipedia. org/wiki/vitamin_d. Some vertebrates (organisms with a backbone) don"t see the sun. The dark side of light (part ii): ecological light pollution. Follow the photons: as we explore biology, look for the relationship between light and life in various aspects/topics, other themes: The hierarchical organization (levels within levels) of life recurs across different topics in biology. The change in genetic characteristics of individuals within populations over time (evolution) accounts for the incredible diversity of organisms, while explaining the unity commonly observed in organisms. Next: evolution, selection, species: ch 3 (only sections 3. 1-3. 3 [pages 48-53] - do not need to read 3. 3a-onwards this term, introduction to metabolism, information and compartmentalization (cells!)
