HUMB0002 Chapter Notes - Chapter 1: Folic Acid, Sickle-Cell Disease, Diarrhea
Document Summary
Interaction of humans with both abiotic and biotic environments (eg vision, barin, bipedal). The interaction is the basis of natural selection and of the evolution of populations through natural selection, kin selection and sexual selection competition for resources. Adaptation a feature that allows an organism to cope better with environmental challenges (fitness increases natural selection). 1st law of thermodynamics in the conversion of energy from one form to another, energy is neither lost nor created. 2nd law of thermodynamics transformations of energy results in loss of free energy (increase entropy) Fossil fuels banked energy transformations of the past. Sun energy photosynthesis into carbon based biomass plants eaten by herbivores eaten by carnivores. Energy needed for growth, metabolism, reproduction, (saving). Natural selection requires genetic variation in response to environmental challenges. Results in differential survival and reproduction evolutionary changes of body form and behaviour. The survival and reproduction of the individual, not the species.
