BIOL 1070 Study Guide - Final Guide: Supercooling, Genetic Drift, Hemoglobin

• School: University of Guelph
• Department: Biology
• Course: BIOL 1070
• Professor: Shoshanah Jacobs

Document Summary

Mammoth and ice fish table mammoth - has hemoglobin icefish - lack of hemoglobin how did these evolve: Icefish > the population got subdivided and the ones with less hemoglobin had a higher population evolution is not natural selection evolution is change in species in genes over time. > can happen by natural selection or genetic drift. Not primiative because theyre exsisting at the same time. Lines in tree represent max amount of species. Why increase in temp affects artic more than tropics. Total change in the colour of the background. Pole have white background and reflect radiation. Tropics absorb heat better super cooling mostly exotherms. When animal lowers its body temp such that is goes under ) degress celcius and it does not freeze. Freeze intolerant because it is trying to prevent it body from breezing.