BIOL 1001 : Exam 3 Completed 99% Completed Topic List
Document Summary
Evolution: contributors to evolutionary thinking, cuvier- accounted for extinct species while preserving the notion of a single creation by. Chapter 15: population geneticists define evolution as the changes in allele frequencies that occur in a gene pool over time. If allele frequencies change from one generation to the next, the population is evolving. Chapter 16: (biological species concept) a species is a group of interbreeding natural populations that are reproductively isolated, 2 limitations to the biological species concept. It cannot be used to determine species identity among asexually reproducing organisms (single celled organisms and plants and fungi) or among fossils: sometimes it is difficult to observe whether members of two different groups interbreed. This limited range makes it extremely vulnerable to extinction. Karner"s blue butterfly lands only on the blue lupine plant. This makes it vulnerable because their habitat has been reduced by development: when north american and south american land masses connected the species began to migrate.
