PSYCH-UA 25 Lecture Notes - Lecture 8: Fetus, Umbilical Cord, Ovulation
Document Summary
Levels of evolutionary analysis: general evolutionary theory, middle-level evolutionary theories, specific evolutionary hypotheses. Origins of human nature: there are three theories: seeding means that life did not originate on earth. The seeds of life arrived earth via a meteorite. It has not been proved useful by science. Random mutations cause an adaptation to occur. Environment can turn on and turn off certain genes. Adaptation can only survive if it proves beneficial to the species. To qualify as an adaptation, it has to emerge at a particular time in the organism"s life, Adaptations do not have to appear at birth, they can come from a lot of different areas: environment interacting, an event, from birth, there has to be some categorical change in the genetic structure. Natural selection itself has been able to study in laboratory sessions and in the wild: we have seen evolution happen, leads us to believe that this is the theory we need to believe.