BIO 1130 Study Guide - Midterm Guide: Puijila, Phospholipid, Gene Flow

• School: University of Ottawa
• Department: Biology
• Course: BIO 1130
• Professor: Jon Houseman

Document Summary

Darwin"s five theories: no constancy of species, common ancestry, gradual changes (just falls into place, multiplication of species (speciation, natural selection (microevolution) Clear that in linear sequence from primitive ancestor to modern day horse, all intermediate could be found. Intermediates: becoming a much quicker runner (change in shape of leg), and be able to feed on the grasses (longer neck) Able to feed on the open grass, but was also open to predation, so had to be very fast to run away from predators. Enamel stronger, teeth bigger, due to the grass. Archaeoptryx lithographica: bird/reptile, transition between reptiles and birds, filling in the missing gaps. Puijila darwini: up in high arctic, transition from land to fresh water aquatic organisms (animals) Getaway message: species change over time, there is no constancy. Common ancestry - evidence: comparative anatomy, comparative embryology, vesitigial structures, biogeography, molecules.